Automatic measurement and detection of GSM interferences

Size: px
Start display at page:

Download "Automatic measurement and detection of GSM interferences"

Transcription

1 Auomaic measuremen and deecion of GSM inerferences Poor speech qualiy and dropped calls in GSM neworks may be caused by inerferences as a resul of high raffic load. The radio nework analyzers from Rohde & Schwarz make he deecion of such sources of error quick and efficien. A new algorihm auomaically analyzes measuremen resuls and, in addiion, unambiguously idenifies inerferers. WIRELESS TECHNOLOGIES Coverage measuremen sysems Deecion of GSM inerferences more imporan han ever GSM neworks are sill he workhorses of nework operaors, as he expansion of WCDMA neworks is lagging behind. However, he higher he raffic load in such GSM neworks primarily as a resul of voice elephony and he higher he number of carrier frequencies added per secor, he greaer he risk of problems caused by inerferences. This ranslaes ino poor speech qualiy and dropped calls. GSM inerference measuremen sysems from Rohde & Schwarz suppor users in deecing such sources of inerference: One ousanding example is he R&S TSMU radio nework analyzer, which was launched in 23. Togeher wih he R&S ROMES coverage measuremen sofware, he analyzer helps o quickly and efficienly measure GSM inerferences and o idenify poenial inerferers in he individual nework [1]. While he basic es seup and T&M mehod remain he same, he following innovaions/enhancemens have been inroduced over he pas wo years: The R&S TSMx radio nework analyzers are exremely powerful. The R&S TSMQ radio nework analyzer, for example, (see FIG below) no only suppors neworks of all sandards (WCDMA, GSM, CDMA2 ) bu can also simulaneously perform measuremens in all sandards. The R&S TSMQ radio nework analyzer [2] (see box on lef) is one of hese new producs. Compared o he R&S TSMU, i provides a higher measuremen speed in GSM neworks (1 channels/s insead of 8) and hus maximizes he chance of deecing inerferers. The new R&S ROMES4COI GSM inerference sofware opion unambiguously idenifies inerferers based on power measuremens performed in imeslos, hus eliminaing he ime-consuming esing of poenial inerference frequencies displayed on he lis of inerfering signals. Owing o an improved GUI, operaion has become even easier. New sofware opion analyzes measuremen resuls fully auomaically Previously, he GSM nework scanner wihin he R&S TSMU / R&S TSMQ plaform could only measure BCCH or C channels. I was no able o deec raffic channels (Cx) or individual imeslos. Alhough he R&S ROMES coverage measuremen sofware did provide a selecion of poenial inerferers ogeher wih curren receive levels, he displayed measuremen resuls sill had o be evaluaed by he user. Now, he new algorihm can fully auomaically analyze measuremen resuls and unambiguously idenify inerferers. For deails on he new measuremen mehod, see box on pages 13 and 14. A compleely new mehod developed by Rohde & Schwarz, which has been implemened in he R&S ROMES coverage measuremen sofware and in he firmware of he GSM nework scanners, now enables users o individually measure he power in specific imeslos while using he same hardware configuraion. If he measured signal componen (i. e. he cell causing he inerference) is srong enough, he source of error can be deeced. This is done by idenifying he raining sequence code (TSC), which, using he base saion lis, can unambiguously be assigned o a base saion color code (BCC) and hus o a cell. NEWS 199/9 11

2 FIG 4 This window defines he display of idenified raining sequences in he imeslo view. FIG 3 If he defined limis for RxLev / RxQual are reached, an error message will be oupu in he even lis. Finding inerferers As in he pas, he es mobile phone is operaed in he endless call mode while he measuremen is performed. If a defined minimum/maximum value of C/I or RxLev / RxQual is exceeded, an error message will be oupu in he even lis. For example, in FIG 3, he values for RxLev / RxQual in he Time 11:46:46,29 column violae he limis se for channel 98. The upper secion of FIG 5 shows he resuls of he measuremens ha are performed in he imeslos: he impaired channel 98 (Cx) is highlighed in blue a he beginning of he imeslos and he associaed C on channel 48 in yellow a he beginning of he imeslos. These highlighed areas represen he raining sequences of he measured imeslos. The degree of sauraion highlighed in orange corresponds o he relaive receive power in he corresponding imeslo in his channel (o provide a beer overview, he power display was normalized). The imeslo view conrol panel (FIG 4) defines how idenified raining sequences are displayed in he imeslo view. The imeslo view hus displays he raining sequences of differen base saions in differen colors. Since each cell broadcass he same color code (BCC) on all carriers, a second color in he imeslo view indicaes ha a second base saion was received. The example in FIG 5 shows imeslos ha are highlighed in yellow (BCC 4) and in ligh blue (BCC 6): This reveals ha hey originae from differen base saions. If he black verical line is posiioned on he impairing imeslo using he cursor, he loaded BTS lis of he operaor allows he received cell o be idenified unambiguously and displayed in he lower par of he window shown in FIG 5 (M- Seinhausen, BCC 6 (ligh blue), power, disance, ec.). In addiion, wo differen imeslo offses beween he channels are presen, as displayed in he d(slo) column. This indicaes wo differen inerferers (wih idenical BCC bu differen iming offse) as all carriers of a cell are synchronized. FIG 5 The new power measuremen and analysis on a imeslo basis. 12

3 The new measuremen mehod in deail The ever increasing demand for ransmission channels in GSM mobile radio neworks and limied frequency resources call for he muliple re-use of frequencies. As a consequence, ransmission channels are ofen impaired by a high number of co-channel and adjacen-channel inerferences. As he srucure of waned and unwaned signals is basically he same, i is quie difficul o deermine and discriminae beween waned and unwaned signal componens. While mobile phones canno be used for such asks, he R&S TSMx radio nework analyzers from Rohde & Schwarz are ideal for such inerference measuremens. Which signal srucures are bes suied for performing inerference analysis? Every base ransceiver saion (BTS) uses specific auxiliary signals o suppor he synchronizaion of he mobile phones wih he nework. Each cell broadcass hese auxiliary signals via a radio channel, which is usually referred o as he BCCH of he cell (or even more precisely, as he BCCH carrier or C). The auxiliary signals are referred o as a frequency correcion burs (FB) and synchronizaion burs (SB). All oher frequencies used in he cell serve as raffic channels (TCHs or Cx) o ransmi voice or daa. The FB is a frequency-shifed sinusoidal signal sen periodically on he BCCH carrier. This signal is a reference signal ha suppors he synchronizaion of he mobile phone in he frequency domain. The SB conains informaion ha is used for synchronizaion in he ime domain. Such informaion includes a characerisic bi sequence, also referred o as he exended raining sequence (ETS), frame numbers, and he base saion ideniy code (BSIC). This code offers one of he firs means of differeniaing beween differen signal sources. The ETS is sored in each GSM mobile phone and is a unique parameer in he GSM world. Is lengh and uniqueness opimally suppor he synchronizaion process of a mobile phone. An impaired ETS on he ransmission pah enables GSM equipmen o draw conclusions abou poenial losses in useful daa. Acually, recognizing such an impaired ETS makes i possible o correcly decode he BSIC and he frame number (equalizer principle). Each cell broadcass he FB and SB in a regular predefined ime paern (51 muliframe srucure, FIG 1). This paern is he key o deermining or disinguishing beween differen signal componens wihin a channel. How do signal componens from differen sources differ in he receive channel? Depending on how far various ransmiing saions are locaed from he measuremen sysem, signals using an idenical paern ha are broadcas from differen cells are received by he measuremen sysem wih differen iming offses and receive levels. In case of a fixed measuremen locaion, he saring ime of his characerisic 51 muliframe Frame srucures / imeslos in he BCCH (carrier) of a base saion TS TS TS7 TS7 1 frame ~ 4.62 ms F S B B B FB Sync burss Normal burss Normal burss (BCCH / CCCH) (raffic channels or conrol channels) F S B B B B C C C C F S C C C C C C C C F S C C C C I F S B B B B C C C C F S C (Downlink) 51 muliframe srucure 51 muliframe srucure (repeiion of paern) ~ 235 ms Channel C (BCCH carrier), all imeslos (Downlink) Channel C (BCCH carrier), only imeslo F: Frequency correcion burs S: Synchronizaion burs B: Broadcas conrol channel C: Common conrol channel I: Idle TS: Timeslo (577 μs) FIG 1 BCCH carriers ransmi he frequency correcion and synchronizaion burs as well as addiional auxiliary signals in imeslo TS. NEWS 199/9 13

4 srucure always has he same iming offse provided ha i originaes from he same source. A differen iming offse hus indicaes ha he received signal was broadcas from a differen source (FIG 2). If he measuremen posiion and hus signal delays and levels change, he sofware compensaes for such changes by processing posiion informaion, e. g. originaing from a GPS receiver. Analysis is relaively easy if he sources are BCCH carriers. Wha is differen wih inerferences caused by raffic channels? If he waned / unwaned signals are raffic channels, characerisic recogniion srucures such as FB and SB are no presen. The only way o idenify and disinguish beween signal componens in raffic channels is o evaluae he normal raining sequences (TSC) conained in every imeslo (burs). However, an analysis based on normal raining sequences requires more effor han ha based on FB and SB. To perform a correc measuremen, all TSCs mus be analyzed and considered on a imeslo basis. Due o he high measuremen speed of he R&S TSMx family of radio nework analyzers and he new R&S ROMES4COI sofware opion, his is no a problem. These sysems now enable users o measure and idenify differen signal componens in he impaired channel also on a imeslo basis. The same principle also applies o raffic channels in he uplink, hus allowing uplink imeslos o be analyzed, oo. By using he R&S ROMES coverage measuremen sofware and a base saion lis, users can quickly and efficienly idenify which unwaned GSM signal componens occur in a receive channel, how srong hey are, and which saion is broadcasing he signal. Kur Gsaenbauer Differen periodic iming offse a measuremen locaion for BCCH (carrier) from differen saions BTS 3 BTS 1 BTS F S B B B B C C C C F S C C C C C C C C F S C C C C C C C C F S C C C C C C C C F S C C C C C C C C I F S B B B B C C C C F S C C C C C C C C F S C C C C C C C C F S C C C C C C C C F S C C C C C C C C I 1 2 F S B B B B C C C C F S C C C C C C C C F 3 4 S C C C C C C C C F S C C C C C C C C F S C C C C C C C C 5 I ~ 235 ms BTS 1 BTS 1 BTS 2 BTS 2 BTS 3 BTS 3 FIG 2 The differen iming offse of he 51 muliframe srucures shows ha he received signals have a differen source. 14

5 If he black verical line is moved o anoher imeslo, he second inerferer will also be displayed (FIG 6). In his example, he C of he M-Moosfeld- cell impairs raffic channel 98 of he es mobile phone. Summary As in he pas, he laes mehod also enables users o measure and analyze inerferences. And i allows Wha if ways of looking a deailed problems by modifying corresponding rigger hresholds. The sysem records iniial measuremen daa, hus enabling users o run he algorihm a any ime wih modified limis. The new implemenaion provides imporan addiional informaion: Alhough he measuremen ime is he same, he new implemenaion considerably reduces he effor o analyze and verify he inerfering cells and also reduces roubleshooing imes. Since he ime-consuming esing of muliple frequencies displayed on he lis of inerfering signals is no longer required, he saff in he operaion and mainenance cener also have a lo less work o do. Abbreviaions BCCH Broadcas conrol channel (also C) BSIC Base ransceiver saion ideniy code (= NCC + BCC) NCC nework color code BCC BTS color code BTS Base ransceiver saion CCCH Common conrol channel C/I Carrier-o-inerference performance ETS Exended raining sequence FB Frequency correcion burs FCCH Frequency correcion channel RxLev Recepion level RxQual Recepion qualiy SB Synchronizaion burs SCH Synchronizaion channel TCH Traffic channel (also Cx) TSC Training sequence code Curren R&S ROMES users merely need o perform a simple sofware upgrade. GSM nework scanners ha are already available simply need o updae heir firmware o he laes version. Chrisian Fischer REFERENCES [1] Radio Nework Analyzer R&S TSMU: Auomaic deecion of inerferences in GSM neworks. News from Rohde & Schwarz (26) No. 19, pp 4 9 [2] R&S TSMx Radio Nework Analyzers: Radio nework analyzers for all asks and any budge. News from Rohde & Schwarz (27) No. 192, pp 5 8 FIG 6 A second inerferer: In his example, he C of he cell named M-Moosfeld- also impairs raffic channel 98 of he es mobile phone. NEWS 199/9 15

TSG-RAN Working Group 1 (Radio Layer 1) meeting #3 Nynashamn, Sweden 22 nd 26 th March 1999

TSG-RAN Working Group 1 (Radio Layer 1) meeting #3 Nynashamn, Sweden 22 nd 26 th March 1999 TSG-RAN Working Group 1 (Radio Layer 1) meeing #3 Nynashamn, Sweden 22 nd 26 h March 1999 RAN TSGW1#3(99)196 Agenda Iem: 9.1 Source: Tile: Documen for: Moorola Macro-diversiy for he PRACH Discussion/Decision

More information

Mobile and Ubiquitous Compu3ng. Mul3plexing for wireless. George Roussos. g.roussos@dcs.bbk.ac.uk

Mobile and Ubiquitous Compu3ng. Mul3plexing for wireless. George Roussos. g.roussos@dcs.bbk.ac.uk Mobile and Ubiquious Compu3ng Mul3plexing for wireless George Roussos g.roussos@dcs.bbk.ac.uk Overview Sharing he wireless (mul3plexing) in space by frequency in 3me by code PuEng i all ogeher: cellular

More information

Coverage measurement systems. Radio Network Analyzer R&S TSMU. Interferences a frequent impairment in radio networks

Coverage measurement systems. Radio Network Analyzer R&S TSMU. Interferences a frequent impairment in radio networks MOBILE RADIO Coverage measurement systems 44820/2 FIG 1 The R&S TSMU automatically detects, analyzes and displays the results of co-channel and adjacent-channel interferences in GSM networks during a drive

More information

SELF-EVALUATION FOR VIDEO TRACKING SYSTEMS

SELF-EVALUATION FOR VIDEO TRACKING SYSTEMS SELF-EVALUATION FOR VIDEO TRACKING SYSTEMS Hao Wu and Qinfen Zheng Cenre for Auomaion Research Dep. of Elecrical and Compuer Engineering Universiy of Maryland, College Park, MD-20742 {wh2003, qinfen}@cfar.umd.edu

More information

Performance Center Overview. Performance Center Overview 1

Performance Center Overview. Performance Center Overview 1 Performance Cener Overview Performance Cener Overview 1 ODJFS Performance Cener ce Cener New Performance Cener Model Performance Cener Projec Meeings Performance Cener Execuive Meeings Performance Cener

More information

ESIGN Rendering Service

ESIGN Rendering Service Markeing maerials on demand wihou phoo shoos or se-up Wih he ESIGN Rendering Service, we produce new, prinready markeing maerials for you in a cos-efficien and imely manner for he design of brochures,

More information

Caring for trees and your service

Caring for trees and your service Caring for rees and your service Line clearing helps preven ouages FPL is commied o delivering safe, reliable elecric service o our cusomers. Trees, especially palm rees, can inerfere wih power lines and

More information

Chabot College Physics Lab RC Circuits Scott Hildreth

Chabot College Physics Lab RC Circuits Scott Hildreth Chabo College Physics Lab Circuis Sco Hildreh Goals: Coninue o advance your undersanding of circuis, measuring resisances, currens, and volages across muliple componens. Exend your skills in making breadboard

More information

USE OF EDUCATION TECHNOLOGY IN ENGLISH CLASSES

USE OF EDUCATION TECHNOLOGY IN ENGLISH CLASSES USE OF EDUCATION TECHNOLOGY IN ENGLISH CLASSES Mehme Nuri GÖMLEKSİZ Absrac Using educaion echnology in classes helps eachers realize a beer and more effecive learning. In his sudy 150 English eachers were

More information

Making a Faster Cryptanalytic Time-Memory Trade-Off

Making a Faster Cryptanalytic Time-Memory Trade-Off Making a Faser Crypanalyic Time-Memory Trade-Off Philippe Oechslin Laboraoire de Securié e de Crypographie (LASEC) Ecole Polyechnique Fédérale de Lausanne Faculé I&C, 1015 Lausanne, Swizerland philippe.oechslin@epfl.ch

More information

A Resource Management Strategy to Support VoIP across Ad hoc IEEE 802.11 Networks

A Resource Management Strategy to Support VoIP across Ad hoc IEEE 802.11 Networks A Resource Managemen Sraegy o Suppor VoIP across Ad hoc IEEE 8.11 Neworks Janusz Romanik Radiocommunicaions Deparmen Miliary Communicaions Insiue Zegrze, Poland j.romanik@wil.waw.pl Pior Gajewski, Jacek

More information

Distributing Human Resources among Software Development Projects 1

Distributing Human Resources among Software Development Projects 1 Disribuing Human Resources among Sofware Developmen Proecs Macario Polo, María Dolores Maeos, Mario Piaini and rancisco Ruiz Summary This paper presens a mehod for esimaing he disribuion of human resources

More information

Appendix D Flexibility Factor/Margin of Choice Desktop Research

Appendix D Flexibility Factor/Margin of Choice Desktop Research Appendix D Flexibiliy Facor/Margin of Choice Deskop Research Cheshire Eas Council Cheshire Eas Employmen Land Review Conens D1 Flexibiliy Facor/Margin of Choice Deskop Research 2 Final Ocober 2012 \\GLOBAL.ARUP.COM\EUROPE\MANCHESTER\JOBS\200000\223489-00\4

More information

Analysis and Design of a MAC Protocol for Wireless Sensor etworks with Periodic Monitoring Applications

Analysis and Design of a MAC Protocol for Wireless Sensor etworks with Periodic Monitoring Applications Analysis and Design of a MAC roocol for Wireless Sensor eworks wih eriodic Monioring Applicaions Miguel A. razo, Yi Qian, Keie u, and Domingo Rodríguez Deparmen of lecrical and Compuer ngineering Universiy

More information

RC, RL and RLC circuits

RC, RL and RLC circuits Name Dae Time o Complee h m Parner Course/ Secion / Grade RC, RL and RLC circuis Inroducion In his experimen we will invesigae he behavior of circuis conaining combinaions of resisors, capaciors, and inducors.

More information

Distributed Echo Cancellation in Multimedia Conferencing System

Distributed Echo Cancellation in Multimedia Conferencing System Disribued Echo Cancellaion in Mulimedia Conferencing Sysem Balan Sinniah 1, Sureswaran Ramadass 2 1 KDU College Sdn.Bhd, A Paramoun Corporaion Company, 32, Jalan Anson, 10400 Penang, Malaysia. sbalan@kdupg.edu.my

More information

Multiprocessor Systems-on-Chips

Multiprocessor Systems-on-Chips Par of: Muliprocessor Sysems-on-Chips Edied by: Ahmed Amine Jerraya and Wayne Wolf Morgan Kaufmann Publishers, 2005 2 Modeling Shared Resources Conex swiching implies overhead. On a processing elemen,

More information

Model-Based Monitoring in Large-Scale Distributed Systems

Model-Based Monitoring in Large-Scale Distributed Systems Model-Based Monioring in Large-Scale Disribued Sysems Diploma Thesis Carsen Reimann Chemniz Universiy of Technology Faculy of Compuer Science Operaing Sysem Group Advisors: Prof. Dr. Winfried Kalfa Dr.

More information

TEMPORAL PATTERN IDENTIFICATION OF TIME SERIES DATA USING PATTERN WAVELETS AND GENETIC ALGORITHMS

TEMPORAL PATTERN IDENTIFICATION OF TIME SERIES DATA USING PATTERN WAVELETS AND GENETIC ALGORITHMS TEMPORAL PATTERN IDENTIFICATION OF TIME SERIES DATA USING PATTERN WAVELETS AND GENETIC ALGORITHMS RICHARD J. POVINELLI AND XIN FENG Deparmen of Elecrical and Compuer Engineering Marquee Universiy, P.O.

More information

The Greek financial crisis: growing imbalances and sovereign spreads. Heather D. Gibson, Stephan G. Hall and George S. Tavlas

The Greek financial crisis: growing imbalances and sovereign spreads. Heather D. Gibson, Stephan G. Hall and George S. Tavlas The Greek financial crisis: growing imbalances and sovereign spreads Heaher D. Gibson, Sephan G. Hall and George S. Tavlas The enry The enry of Greece ino he Eurozone in 2001 produced a dividend in he

More information

The Application of Multi Shifts and Break Windows in Employees Scheduling

The Application of Multi Shifts and Break Windows in Employees Scheduling The Applicaion of Muli Shifs and Brea Windows in Employees Scheduling Evy Herowai Indusrial Engineering Deparmen, Universiy of Surabaya, Indonesia Absrac. One mehod for increasing company s performance

More information

DDoS Attacks Detection Model and its Application

DDoS Attacks Detection Model and its Application DDoS Aacks Deecion Model and is Applicaion 1, MUHAI LI, 1 MING LI, XIUYING JIANG 1 School of Informaion Science & Technology Eas China Normal Universiy No. 500, Dong-Chuan Road, Shanghai 0041, PR. China

More information

OPERATION MANUAL. Indoor unit for air to water heat pump system and options EKHBRD011ABV1 EKHBRD014ABV1 EKHBRD016ABV1

OPERATION MANUAL. Indoor unit for air to water heat pump system and options EKHBRD011ABV1 EKHBRD014ABV1 EKHBRD016ABV1 OPERAION MANUAL Indoor uni for air o waer hea pump sysem and opions EKHBRD011ABV1 EKHBRD014ABV1 EKHBRD016ABV1 EKHBRD011ABY1 EKHBRD014ABY1 EKHBRD016ABY1 EKHBRD011ACV1 EKHBRD014ACV1 EKHBRD016ACV1 EKHBRD011ACY1

More information

Task is a schedulable entity, i.e., a thread

Task is a schedulable entity, i.e., a thread Real-Time Scheduling Sysem Model Task is a schedulable eniy, i.e., a hread Time consrains of periodic ask T: - s: saring poin - e: processing ime of T - d: deadline of T - p: period of T Periodic ask T

More information

Baumer FWL120 NeuroCheck Edition Art. No: OD106434

Baumer FWL120 NeuroCheck Edition Art. No: OD106434 High Sensiive Digial Monochrome (b/w) Line Scan Camera Sysem: IEEE1394a Baumer FWL120 NeuroCheck Ediion Ar. No: OD106434 IEEE1394a (FireWire TM ) Progressive Scan CCD Camera 2048 Pixels Ousanding Image

More information

Risk Modelling of Collateralised Lending

Risk Modelling of Collateralised Lending Risk Modelling of Collaeralised Lending Dae: 4-11-2008 Number: 8/18 Inroducion This noe explains how i is possible o handle collaeralised lending wihin Risk Conroller. The approach draws on he faciliies

More information

CHARGE AND DISCHARGE OF A CAPACITOR

CHARGE AND DISCHARGE OF A CAPACITOR REFERENCES RC Circuis: Elecrical Insrumens: Mos Inroducory Physics exs (e.g. A. Halliday and Resnick, Physics ; M. Sernheim and J. Kane, General Physics.) This Laboraory Manual: Commonly Used Insrumens:

More information

Analogue and Digital Signal Processing. First Term Third Year CS Engineering By Dr Mukhtiar Ali Unar

Analogue and Digital Signal Processing. First Term Third Year CS Engineering By Dr Mukhtiar Ali Unar Analogue and Digial Signal Processing Firs Term Third Year CS Engineering By Dr Mukhiar Ali Unar Recommended Books Haykin S. and Van Veen B.; Signals and Sysems, John Wiley& Sons Inc. ISBN: 0-7-380-7 Ifeachor

More information

Technical Report / Universität Dortmund, SFB 475 Komplexitätsreduktion in Multivariaten Datenstrukturen, No. 2006,23

Technical Report / Universität Dortmund, SFB 475 Komplexitätsreduktion in Multivariaten Datenstrukturen, No. 2006,23 econsor www.econsor.eu Der Open-Access-Publikaionsserver der ZBW Leibniz-Informaionszenrum Wirschaf The Open Access Publicaion Server of he ZBW Leibniz Informaion Cenre for Economics Schelinger, Karen;

More information

Towards Intrusion Detection in Wireless Sensor Networks

Towards Intrusion Detection in Wireless Sensor Networks Towards Inrusion Deecion in Wireless Sensor Neworks Kroniris Ioannis, Tassos Dimiriou and Felix C. Freiling Ahens Informaion Technology, 19002 Peania, Ahens, Greece Email: {ikro,dim}@ai.edu.gr Deparmen

More information

Making Use of Gate Charge Information in MOSFET and IGBT Data Sheets

Making Use of Gate Charge Information in MOSFET and IGBT Data Sheets Making Use of ae Charge Informaion in MOSFET and IBT Daa Shees Ralph McArhur Senior Applicaions Engineer Advanced Power Technology 405 S.W. Columbia Sree Bend, Oregon 97702 Power MOSFETs and IBTs have

More information

Real-time Particle Filters

Real-time Particle Filters Real-ime Paricle Filers Cody Kwok Dieer Fox Marina Meilă Dep. of Compuer Science & Engineering, Dep. of Saisics Universiy of Washingon Seale, WA 9895 ckwok,fox @cs.washingon.edu, mmp@sa.washingon.edu Absrac

More information

Photo Modules for PCM Remote Control Systems

Photo Modules for PCM Remote Control Systems Phoo Modules for PCM Remoe Conrol Sysems Available ypes for differen carrier frequencies Type fo Type fo TSOP173 3 khz TSOP1733 33 khz TSOP1736 36 khz TSOP1737 36.7 khz TSOP1738 38 khz TSOP174 4 khz TSOP1756

More information

1. BACKGROUND 1-1 Traffic Flow Surveillance

1. BACKGROUND 1-1 Traffic Flow Surveillance Auo-Recogniion of Vehicle Maneuvers Based on Spaio-Temporal Clusering. BACKGROUND - Traffic Flow Surveillance Conduced wih kinds of beacons mouned a limied roadside poins wih Images from High Aliude Plaforms

More information

RC Circuit and Time Constant

RC Circuit and Time Constant ircui and Time onsan 8M Objec: Apparaus: To invesigae he volages across he resisor and capacior in a resisor-capacior circui ( circui) as he capacior charges and discharges. We also wish o deermine he

More information

Chapter 8: Regression with Lagged Explanatory Variables

Chapter 8: Regression with Lagged Explanatory Variables Chaper 8: Regression wih Lagged Explanaory Variables Time series daa: Y for =1,..,T End goal: Regression model relaing a dependen variable o explanaory variables. Wih ime series new issues arise: 1. One

More information

Analysis of Pricing and Efficiency Control Strategy between Internet Retailer and Conventional Retailer

Analysis of Pricing and Efficiency Control Strategy between Internet Retailer and Conventional Retailer Recen Advances in Business Managemen and Markeing Analysis of Pricing and Efficiency Conrol Sraegy beween Inerne Reailer and Convenional Reailer HYUG RAE CHO 1, SUG MOO BAE and JOG HU PARK 3 Deparmen of

More information

Packet-Oriented Communication Protocols for Smart Grid Services over Low-Speed PLC

Packet-Oriented Communication Protocols for Smart Grid Services over Low-Speed PLC Packe-Oriened Communicaion Proocols for Smar Grid Services over Low-Speed PLC Michael Bauer, Wolfgang Plapper, Chong Wang, Klaus Doser Insiue of Indusrial Informaion Technology Universiä Karlsruhe (TH)

More information

Molding. Injection. Design. GE Plastics. GE Engineering Thermoplastics DESIGN GUIDE

Molding. Injection. Design. GE Plastics. GE Engineering Thermoplastics DESIGN GUIDE apple GE Plasics GE Engineering Thermoplasics DESIGN GUIDE Wall Thickness Paring Lines Ejecion Appearance Pars Ribs/Gusses Bosses Holes Depressions Radii, Filles and Corners Molding Design Injecion s for

More information

Measuring macroeconomic volatility Applications to export revenue data, 1970-2005

Measuring macroeconomic volatility Applications to export revenue data, 1970-2005 FONDATION POUR LES ETUDES ET RERS LE DEVELOPPEMENT INTERNATIONAL Measuring macroeconomic volailiy Applicaions o expor revenue daa, 1970-005 by Joël Cariolle Policy brief no. 47 March 01 The FERDI is a

More information

Wireless Ethernet. Wireless LANs: Design Goals. Structure of a WLAN. Infrastructure Network

Wireless Ethernet. Wireless LANs: Design Goals. Structure of a WLAN. Infrastructure Network L apo p L apo p Lapop L apo p Lapop Lapop Lapop Lapop Wireless Eherne Wireless equivalen o Eherne: Wireless LAN (WLAN) Exclusively daa-oriened, wide-band Inerne access soluion Sandardized by he IEEE as

More information

Form measurement systems from Hommel-Etamic Geometrical tolerancing in practice DKD-K-02401. Precision is our business.

Form measurement systems from Hommel-Etamic Geometrical tolerancing in practice DKD-K-02401. Precision is our business. Form measuremen sysems from Hommel-Eamic Geomerical olerancing in pracice DKD-K-02401 Precision is our business. Drawing enries Tolerance frame 0.01 0.01 Daum leer Tolerance value in mm Symbol for he oleranced

More information

Distributed Online Localization in Sensor Networks Using a Moving Target

Distributed Online Localization in Sensor Networks Using a Moving Target Disribued Online Localizaion in Sensor Neworks Using a Moving Targe Aram Galsyan 1, Bhaskar Krishnamachari 2, Krisina Lerman 1, and Sundeep Paem 2 1 Informaion Sciences Insiue 2 Deparmen of Elecrical Engineering-Sysems

More information

Pulse-Width Modulation Inverters

Pulse-Width Modulation Inverters SECTION 3.6 INVERTERS 189 Pulse-Widh Modulaion Inverers Pulse-widh modulaion is he process of modifying he widh of he pulses in a pulse rain in direc proporion o a small conrol signal; he greaer he conrol

More information

Automated Allocation of ESA Ground Station Network Services

Automated Allocation of ESA Ground Station Network Services Auomaed Allocaion of ESA Ground Saion Nework Services Sylvain Damiani (), Holger Dreihahn (), Jörg Noll (), Marc Niézee (), and Gian Paolo Calzolari () () VEGA, Aerospace Division Rober Bosch Sraße 7,

More information

IR Receiver Module for Light Barrier Systems

IR Receiver Module for Light Barrier Systems IR Receiver Module for Ligh Barrier Sysems MECHANICAL DATA Pinning: 1 = OUT, 2 = GND, 3 = V S 19026 APPLICATIONS Reflecive sensors for hand dryers, owel or soap dispensers, waer fauces, oile flush Vending

More information

Channel Holding Time Distribution in Public Cellular Telephony *

Channel Holding Time Distribution in Public Cellular Telephony * ITC6 / P. Kelly and D. Smih (Ediors) 999 Elsevier Science B.V. Channel Holding Time Disribuion in Public Cellular Telephony * Francisco Barceló a and Javier Jordán b a Deparameno de Maemáica Aplicada y

More information

II.1. Debt reduction and fiscal multipliers. dbt da dpbal da dg. bal

II.1. Debt reduction and fiscal multipliers. dbt da dpbal da dg. bal Quarerly Repor on he Euro Area 3/202 II.. Deb reducion and fiscal mulipliers The deerioraion of public finances in he firs years of he crisis has led mos Member Saes o adop sizeable consolidaion packages.

More information

A Natural Feature-Based 3D Object Tracking Method for Wearable Augmented Reality

A Natural Feature-Based 3D Object Tracking Method for Wearable Augmented Reality A Naural Feaure-Based 3D Objec Tracking Mehod for Wearable Augmened Realiy Takashi Okuma Columbia Universiy / AIST Email: okuma@cs.columbia.edu Takeshi Kuraa Universiy of Washingon / AIST Email: kuraa@ieee.org

More information

Principal components of stock market dynamics. Methodology and applications in brief (to be updated ) Andrei Bouzaev, bouzaev@ya.

Principal components of stock market dynamics. Methodology and applications in brief (to be updated ) Andrei Bouzaev, bouzaev@ya. Principal componens of sock marke dynamics Mehodology and applicaions in brief o be updaed Andrei Bouzaev, bouzaev@ya.ru Why principal componens are needed Objecives undersand he evidence of more han one

More information

Permutations and Combinations

Permutations and Combinations Permuaions and Combinaions Combinaorics Copyrigh Sandards 006, Tes - ANSWERS Barry Mabillard. 0 www.mah0s.com 1. Deermine he middle erm in he expansion of ( a b) To ge he k-value for he middle erm, divide

More information

UPDATE OF QUARTERLY NATIONAL ACCOUNTS MANUAL: CONCEPTS, DATA SOURCES AND COMPILATION 1 CHAPTER 7. SEASONAL ADJUSTMENT 2

UPDATE OF QUARTERLY NATIONAL ACCOUNTS MANUAL: CONCEPTS, DATA SOURCES AND COMPILATION 1 CHAPTER 7. SEASONAL ADJUSTMENT 2 UPDATE OF QUARTERLY NATIONAL ACCOUNTS MANUAL: CONCEPTS, DATA SOURCES AND COMPILATION 1 CHAPTER 7. SEASONAL ADJUSTMENT 2 Table of Conens 1. Inroducion... 3 2. Main Principles of Seasonal Adjusmen... 6 3.

More information

Constant Data Length Retrieval for Video Servers with Variable Bit Rate Streams

Constant Data Length Retrieval for Video Servers with Variable Bit Rate Streams IEEE Inernaional Conference on Mulimedia Compuing & Sysems, June 17-3, 1996, in Hiroshima, Japan, p. 151-155 Consan Lengh Rerieval for Video Servers wih Variable Bi Rae Sreams Erns Biersack, Frédéric Thiesse,

More information

NOTES ON OSCILLOSCOPES

NOTES ON OSCILLOSCOPES NOTES ON OSCILLOSCOPES NOTES ON... OSCILLOSCOPES... Oscilloscope... Analog and Digial... Analog Oscilloscopes... Cahode Ray Oscilloscope Principles... 5 Elecron Gun... 5 The Deflecion Sysem... 6 Displaying

More information

BALANCE OF PAYMENTS. First quarter 2008. Balance of payments

BALANCE OF PAYMENTS. First quarter 2008. Balance of payments BALANCE OF PAYMENTS DATE: 2008-05-30 PUBLISHER: Balance of Paymens and Financial Markes (BFM) Lena Finn + 46 8 506 944 09, lena.finn@scb.se Camilla Bergeling +46 8 506 942 06, camilla.bergeling@scb.se

More information

Forecasting. Including an Introduction to Forecasting using the SAP R/3 System

Forecasting. Including an Introduction to Forecasting using the SAP R/3 System Forecasing Including an Inroducion o Forecasing using he SAP R/3 Sysem by James D. Blocher Vincen A. Maber Ashok K. Soni Munirpallam A. Venkaaramanan Indiana Universiy Kelley School of Business February

More information

GUIDE GOVERNING SMI RISK CONTROL INDICES

GUIDE GOVERNING SMI RISK CONTROL INDICES GUIDE GOVERNING SMI RISK CONTROL IND ICES SIX Swiss Exchange Ld 04/2012 i C O N T E N T S 1. Index srucure... 1 1.1 Concep... 1 1.2 General principles... 1 1.3 Index Commission... 1 1.4 Review of index

More information

The Architecture of a Churn Prediction System Based on Stream Mining

The Architecture of a Churn Prediction System Based on Stream Mining The Archiecure of a Churn Predicion Sysem Based on Sream Mining Borja Balle a, Bernardino Casas a, Alex Caarineu a, Ricard Gavaldà a, David Manzano-Macho b a Universia Poliècnica de Caalunya - BarcelonaTech.

More information

Advanced Traffic Routing as Part of the USA Intelligent Telecommunications Network

Advanced Traffic Routing as Part of the USA Intelligent Telecommunications Network Advanced Traffic Rouing as Par of he USA Inelligen Telecommunicaions Nework Edmund P. GOULD Bell Communicaions Research 435 Souh Sree Morrisown, New Jersey 07960 The USA Telecommunicaions Nework is evolving

More information

Duration and Convexity ( ) 20 = Bond B has a maturity of 5 years and also has a required rate of return of 10%. Its price is $613.

Duration and Convexity ( ) 20 = Bond B has a maturity of 5 years and also has a required rate of return of 10%. Its price is $613. Graduae School of Business Adminisraion Universiy of Virginia UVA-F-38 Duraion and Convexiy he price of a bond is a funcion of he promised paymens and he marke required rae of reurn. Since he promised

More information

Trends in TCP/IP Retransmissions and Resets

Trends in TCP/IP Retransmissions and Resets Trends in TCP/IP Reransmissions and Reses Absrac Concordia Chen, Mrunal Mangrulkar, Naomi Ramos, and Mahaswea Sarkar {cychen, mkulkarn, msarkar,naramos}@cs.ucsd.edu As he Inerne grows larger, measuring

More information

Chapter 1.6 Financial Management

Chapter 1.6 Financial Management Chaper 1.6 Financial Managemen Par I: Objecive ype quesions and answers 1. Simple pay back period is equal o: a) Raio of Firs cos/ne yearly savings b) Raio of Annual gross cash flow/capial cos n c) = (1

More information

This is the author s version of a work that was submitted/accepted for publication in the following source:

This is the author s version of a work that was submitted/accepted for publication in the following source: This is he auhor s version of a work ha was submied/acceped for publicaion in he following source: Debnah, Ashim Kumar & Chin, Hoong Chor (2006) Analysis of marine conflics. In Proceedings of he 19h KKCNN

More information

The ContikiMAC Radio Duty Cycling Protocol

The ContikiMAC Radio Duty Cycling Protocol The ConikiMAC uy Cycling Proocol Adam unkels adam@sics.se SICS Technical Repor T211:13 ISSN 11-314 ecember 211 Absrac Low-power wireless devices mus keep heir radio ransceivers off as much as possible

More information

Hedging with Forwards and Futures

Hedging with Forwards and Futures Hedging wih orwards and uures Hedging in mos cases is sraighforward. You plan o buy 10,000 barrels of oil in six monhs and you wish o eliminae he price risk. If you ake he buy-side of a forward/fuures

More information

µ r of the ferrite amounts to 1000...4000. It should be noted that the magnetic length of the + δ

µ r of the ferrite amounts to 1000...4000. It should be noted that the magnetic length of the + δ Page 9 Design of Inducors and High Frequency Transformers Inducors sore energy, ransformers ransfer energy. This is he prime difference. The magneic cores are significanly differen for inducors and high

More information

CALCULATION OF OMX TALLINN

CALCULATION OF OMX TALLINN CALCULATION OF OMX TALLINN CALCULATION OF OMX TALLINN 1. OMX Tallinn index...3 2. Terms in use...3 3. Comuaion rules of OMX Tallinn...3 3.1. Oening, real-ime and closing value of he Index...3 3.2. Index

More information

SKF Documented Solutions

SKF Documented Solutions SKF Documened Soluions Real world savings and we can prove i! How much can SKF save you? Le s do he numbers. The SKF Documened Soluions Program SKF is probably no he firs of your supplier parners o alk

More information

Information Systems for Business Integration: ERP Systems

Information Systems for Business Integration: ERP Systems Informaion Sysems for Business Inegraion: ERP Sysems (December 3, 2012) BUS3500 - Abdou Illia, Fall 2012 1 LEARNING GOALS Explain he difference beween horizonal and verical business inegraion. Describe

More information

Circuit Types. () i( t) ( )

Circuit Types. () i( t) ( ) Circui Types DC Circuis Idenifying feaures: o Consan inpus: he volages of independen volage sources and currens of independen curren sources are all consan. o The circui does no conain any swiches. All

More information

System Performance Improvement By Server Virtualization

System Performance Improvement By Server Virtualization Sysem Performance Improvemen By Server Virualizaion Hioshi Ueno, Tomohide Hasegawa, and Keiichi Yoshihama Absrac Wih he advance of semiconducor echnology, microprocessors become highly inegraed and herefore

More information

Advise on the development of a Learning Technologies Strategy at the Leopold-Franzens-Universität Innsbruck

Advise on the development of a Learning Technologies Strategy at the Leopold-Franzens-Universität Innsbruck Advise on he developmen of a Learning Technologies Sraegy a he Leopold-Franzens-Universiä Innsbruck Prof. Dr. Rob Koper Open Universiy of he Neherlands Educaional Technology Experise Cener Conex - Period

More information

WATER MIST FIRE PROTECTION RELIABILITY ANALYSIS

WATER MIST FIRE PROTECTION RELIABILITY ANALYSIS WATER MIST FIRE PROTECTION RELIABILITY ANALYSIS Shuzhen Xu Research Risk and Reliabiliy Area FM Global Norwood, Massachuses 262, USA David Fuller Engineering Sandards FM Global Norwood, Massachuses 262,

More information

8/27/08. Wireless Transmission Frequencies Signals, antennas, signal propagation Multiplexing Spread spectrum, modulation Cellular systems

8/27/08. Wireless Transmission Frequencies Signals, antennas, signal propagation Multiplexing Spread spectrum, modulation Cellular systems Wireless Transmission Frequencies Signals, anennas, propagaion Muliplexing Spread specrum, modulaion Cellular sysems Frequencies or Communicaion VLF = Very Low Frequency UHF = Ulra High Frequency LF =

More information

GSM: PHYSICAL & LOGICAL CHANNELS

GSM: PHYSICAL & LOGICAL CHANNELS GSM: PHYSICAL & LOGICAL CHANNELS AN OVERVIEW Prepared by Learntelecom.com 1. GSM: PHYSICAL AND LOGICAL CHANNELS GSM uses a mix of Frequency Division Multiple Access (FDMA) and Time Division Multiple Access

More information

Motion Along a Straight Line

Motion Along a Straight Line Moion Along a Sraigh Line On Sepember 6, 993, Dave Munday, a diesel mechanic by rade, wen over he Canadian edge of Niagara Falls for he second ime, freely falling 48 m o he waer (and rocks) below. On his

More information

'HSDUWPHQW RI,QIRUPDWLRQ 7HFKQRORJ\ (OHFWULFDO DQG LQIRUPDWLRQ WHFKQRORJ\ BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB /XQG 8QLYHUVLW\ 3XEOLFDWLRQV

'HSDUWPHQW RI,QIRUPDWLRQ 7HFKQRORJ\ (OHFWULFDO DQG LQIRUPDWLRQ WHFKQRORJ\ BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB /XQG 8QLYHUVLW\ 3XEOLFDWLRQV 'HSDUWPHQW RI,QIRUPDWLRQ 7HFKQRORJ\ OHFWULFDO DQG LQIRUPDWLRQ WHFKQRORJ\ BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB /XQG 8QLYHUVLW\ 3XEOLFDWLRQV Insiuional Reposiory of Lund Universiy Found a hp://lup.lub.lu.se

More information

Multi- and Single View Multiperson Tracking for Smart Room Environments

Multi- and Single View Multiperson Tracking for Smart Room Environments Muli- and Single View Muliperson Tracking for Smar Room Environmens Keni Bernardin 1, Tobias Gehrig 1, and Rainer Siefelhagen 1 Ineracive Sysems Lab Insiu für Theoreische Informaik Universiä Karlsruhe,

More information

DOES TRADING VOLUME INFLUENCE GARCH EFFECTS? SOME EVIDENCE FROM THE GREEK MARKET WITH SPECIAL REFERENCE TO BANKING SECTOR

DOES TRADING VOLUME INFLUENCE GARCH EFFECTS? SOME EVIDENCE FROM THE GREEK MARKET WITH SPECIAL REFERENCE TO BANKING SECTOR Invesmen Managemen and Financial Innovaions, Volume 4, Issue 3, 7 33 DOES TRADING VOLUME INFLUENCE GARCH EFFECTS? SOME EVIDENCE FROM THE GREEK MARKET WITH SPECIAL REFERENCE TO BANKING SECTOR Ahanasios

More information

Methodology of the direct measurement of the switching latency

Methodology of the direct measurement of the switching latency Tomas HEGR, Leos BOHC, Zbynek KOCUR, Miroslav VOZK, Per CHLUMSKY Czech Technical Universiy in Prague (), VSB Technical Universiy of Osrava () Mehodology of he direc measuremen of he iching laency bsrac.

More information

Acceleration Lab Teacher s Guide

Acceleration Lab Teacher s Guide Acceleraion Lab Teacher s Guide Objecives:. Use graphs of disance vs. ime and velociy vs. ime o find acceleraion of a oy car.. Observe he relaionship beween he angle of an inclined plane and he acceleraion

More information

GoRA. For more information on genetics and on Rheumatoid Arthritis: Genetics of Rheumatoid Arthritis. Published work referred to in the results:

GoRA. For more information on genetics and on Rheumatoid Arthritis: Genetics of Rheumatoid Arthritis. Published work referred to in the results: For more informaion on geneics and on Rheumaoid Arhriis: Published work referred o in he resuls: The geneics revoluion and he assaul on rheumaoid arhriis. A review by Michael Seldin, Crisopher Amos, Ryk

More information

The Complete VoIP Telecom Service Provider The Evolution of a SIP Trunking Provider

The Complete VoIP Telecom Service Provider The Evolution of a SIP Trunking Provider The Complee VoIP Telecom Service Provider The Evoluion of a SIP Trunking Provider By: Sean Rivers Direcor of Technology parner Assurance 1 Agenda Who is Bandwidh.com Today Before VoIP The Addiion of VoIP

More information

Improvement of a TCP Incast Avoidance Method for Data Center Networks

Improvement of a TCP Incast Avoidance Method for Data Center Networks Improvemen of a Incas Avoidance Mehod for Daa Cener Neworks Kazuoshi Kajia, Shigeyuki Osada, Yukinobu Fukushima and Tokumi Yokohira The Graduae School of Naural Science and Technology, Okayama Universiy

More information

Multi-camera scheduling for video production

Multi-camera scheduling for video production Muli-camera scheduling for video producion Fahad Daniyal and Andrea Cavallaro Queen Mary Universiy of London Mile End Road, E 4S London, Unied Kingdom Email: {fahad.daniyal, andrea.cavallaro}@eecs.qmul.ac.uk

More information

Pervasive Internet Access by Vehicles through Satellite Receive-only Terminals

Pervasive Internet Access by Vehicles through Satellite Receive-only Terminals Pervasive Inerne Access by Vehicles hrough Saellie Receive-only Terminals Baber Aslam, Ping Wang and Cliff C. Zou School of Elecrical Engineering and Compuer Science Universiy of Cenral Florida Orlando,

More information

Secure Election Infrastructures Based on IPv6 Clouds

Secure Election Infrastructures Based on IPv6 Clouds Secure Elecion Infrasrucures Based on IPv6 Clouds Firs IPv6-only OpenSack Cloud used o deliver producion services is de-ployed by Nephos6, Cikomm and SnT-Universiy of Luxembourg. Laif Ladid, Presiden,

More information

Usefulness of the Forward Curve in Forecasting Oil Prices

Usefulness of the Forward Curve in Forecasting Oil Prices Usefulness of he Forward Curve in Forecasing Oil Prices Akira Yanagisawa Leader Energy Demand, Supply and Forecas Analysis Group The Energy Daa and Modelling Cener Summary When people analyse oil prices,

More information

UNDERSTANDING THE DEATH BENEFIT SWITCH OPTION IN UNIVERSAL LIFE POLICIES. Nadine Gatzert

UNDERSTANDING THE DEATH BENEFIT SWITCH OPTION IN UNIVERSAL LIFE POLICIES. Nadine Gatzert UNDERSTANDING THE DEATH BENEFIT SWITCH OPTION IN UNIVERSAL LIFE POLICIES Nadine Gazer Conac (has changed since iniial submission): Chair for Insurance Managemen Universiy of Erlangen-Nuremberg Lange Gasse

More information

Appendix A: Area. 1 Find the radius of a circle that has circumference 12 inches.

Appendix A: Area. 1 Find the radius of a circle that has circumference 12 inches. Appendi A: Area worked-ou s o Odd-Numbered Eercises Do no read hese worked-ou s before aemping o do he eercises ourself. Oherwise ou ma mimic he echniques shown here wihou undersanding he ideas. Bes wa

More information

A Distributed Multiple-Target Identity Management Algorithm in Sensor Networks

A Distributed Multiple-Target Identity Management Algorithm in Sensor Networks A Disribued Muliple-Targe Ideniy Managemen Algorihm in Sensor Neworks Inseok Hwang, Kaushik Roy, Hamsa Balakrishnan, and Claire Tomlin Dep. of Aeronauics and Asronauics, Sanford Universiy, CA 94305 Elecrical

More information

Exploring Imputation Techniques for Missing Data in Transportation Management Systems

Exploring Imputation Techniques for Missing Data in Transportation Management Systems Exploring Impuaion Techniques for Missing Daa in Transporaion Managemen Sysems Brian L. Smih Assisan Professor Universiy of Virginia Deparmen of Civil Engineering P. O. Box 400742 Charloesville, VA 22904-4742

More information

Signal Processing and Linear Systems I

Signal Processing and Linear Systems I Sanford Universiy Summer 214-215 Signal Processing and Linear Sysems I Lecure 5: Time Domain Analysis of Coninuous Time Sysems June 3, 215 EE12A:Signal Processing and Linear Sysems I; Summer 14-15, Gibbons

More information

ANALYSIS AND COMPARISONS OF SOME SOLUTION CONCEPTS FOR STOCHASTIC PROGRAMMING PROBLEMS

ANALYSIS AND COMPARISONS OF SOME SOLUTION CONCEPTS FOR STOCHASTIC PROGRAMMING PROBLEMS ANALYSIS AND COMPARISONS OF SOME SOLUTION CONCEPTS FOR STOCHASTIC PROGRAMMING PROBLEMS R. Caballero, E. Cerdá, M. M. Muñoz and L. Rey () Deparmen of Applied Economics (Mahemaics), Universiy of Málaga,

More information

INTRODUCTION TO FORECASTING

INTRODUCTION TO FORECASTING INTRODUCTION TO FORECASTING INTRODUCTION: Wha is a forecas? Why do managers need o forecas? A forecas is an esimae of uncerain fuure evens (lierally, o "cas forward" by exrapolaing from pas and curren

More information

MACROECONOMIC FORECASTS AT THE MOF A LOOK INTO THE REAR VIEW MIRROR

MACROECONOMIC FORECASTS AT THE MOF A LOOK INTO THE REAR VIEW MIRROR MACROECONOMIC FORECASTS AT THE MOF A LOOK INTO THE REAR VIEW MIRROR The firs experimenal publicaion, which summarised pas and expeced fuure developmen of basic economic indicaors, was published by he Minisry

More information

Task-Execution Scheduling Schemes for Network Measurement and Monitoring

Task-Execution Scheduling Schemes for Network Measurement and Monitoring Task-Execuion Scheduling Schemes for Nework Measuremen and Monioring Zhen Qin, Robero Rojas-Cessa, and Nirwan Ansari Deparmen of Elecrical and Compuer Engineering New Jersey Insiue of Technology Universiy

More information

9. Capacitor and Resistor Circuits

9. Capacitor and Resistor Circuits ElecronicsLab9.nb 1 9. Capacior and Resisor Circuis Inroducion hus far we have consider resisors in various combinaions wih a power supply or baery which provide a consan volage source or direc curren

More information

Ecotopia: An Ecological Framework for Change Management in Distributed Systems

Ecotopia: An Ecological Framework for Change Management in Distributed Systems Ecoopia: An Ecological Framework for Change Managemen in Disribued Sysems Tudor Dumiraş 1, Daniela Roşu 2, Asi Dan 2, and Priya Narasimhan 1 1 ECE Deparmen, Carnegie Mellon Universiy, Pisburgh, PA 15213,

More information