REAL TIME IMPLEMANTATION OF LMS BEAMFORMER FOR cdma2000 3G SYSTEM USING TI TMS320C6701 DSP

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "REAL TIME IMPLEMANTATION OF LMS BEAMFORMER FOR cdma2000 3G SYSTEM USING TI TMS320C6701 DSP"

Transcription

1 REAL TIME IMPLEMANTATION OF LMS BEAMFORMER FOR cdma2000 3G SYSTEM USING TI TMS320C6701 DSP Kerem Küçük, Mustafa Karakoç, and Adnan Kavak + Kocaei University + Kocaei University Eectronics and Computer Ed. Dept. Computer Eng. Dept. İzmit, Turkey İzmit, Turkey E-mais: kkucuk, mkarakoc, Key words: Beamforming, DSP, LMS, smart antenna, software radio 3G system ABSTRACT Digita Signa Processor (DSP) is an emerging technoogy that offers great opportunities for the deveopment of future wireess communications systems. In this paper, we demonstrate an impementation of rea time adaptive beamforming for cdma2000 reverse ink using TI C6701 DSP. We consider that the DSP executes east-mean-square (LMS) agorithm for the beamformer weight vector computation. The resuts show that the system can hande computation of optimum weight vector within reasonabe time for 3G appications. The computed weight vector is observed to steer the main beam of the antenna array towards the desired signa direction. Compexity and execution time of the agorithm increase with the number of antenna eements. I. INTRODUCTION Smart antennas [1] that compose of an antenna array and advanced signa processing modue in the baseband are being regarded by many as the key soution for increasing the spectra efficiency and improving the system performance in mobie communications. In principe, an antenna is smart ony when it can recognize and track the signa of a mobie user whie suppressing interfering signas. The antenna array empoys adaptive beamforming agorithms for recognize, track and suppress the interference. In this study, we investigate the feasibiity of impementing an adaptive beamforming agorithm, namey Least Mean Square (LMS) beamforming method, utiizing TI C6701 foating point DSP for rea time cdma2000 appications. The simuation system consists of a PC for data generation, Matab s TI code composer toobox for interfacing modue, and TI TMS320C6701 evauation modue (EVM) for the beamformer weight vector computation. Simuations are performed as the foowing steps: First, received data in cdma2000 reverse ink format [2] is generated using Matab and saved in a data fie of a PC. In the signa mode, wireess propagation channe and interference effects are considered by setting mutipe access interference (MAI), additive white Gaussian noise (AWGN), and channe parameters propery. Second, the adaptive agorithm is coded in ASM and compied finay to be oaded in a memory of DSP board (TMS320C6701). DSP board computed the weight vector that is based on LMS agorithm and beamformer generated the weight vector for muti-users in rea time. Third, the weight vector obtained in the beamforming modue is feedback to the PC via Matab s interfacing functions and code composer studio (CCS) to check the performance based on off-ine processing. II. SYSTEM MODELING Consider a reverse ink channe [2], assuming that there are N subscribers in a ce or a sector, the signa received by M eement antenna array at the base station can be expressed as, L X(t) = α s(t τ ) a(θ ) + I(t) + N(t) (1) = 1 where, s(t) is transmitted signa with compex path j attenuation α = β e φ and time deay τ for each mutipath signa, I(t) is the mutipe access interference (MAI) given by N 1 L q I (t) = α,s(t τ ). a(θ (2) q= 1 = 1 q q, q, ) This work is supported by The Scientific and Technica Research Counci of Turkey TUBITAK under grant EEEAG / 102E015

2 W 1 Desired user S(t) )) OCNS (mutipe access interference),i(t) AWGN X(t) W 2 W 3 y(t) Wireess Propagation Channe W n DSP (Adaptive Beamforming Agorithm) Figure 1 Received signa mode at an antenna array. and N(t) is the Mx1 compex-vaued additive white Gaussian noise vector, a (θ ) is the Mx1 array response vector for the mutipath arriving at direction of arriva (DOA) θ. At the antenna array output as shown in Figure 1, compex baseband signas are mutipied by compex weight vectors [ W W.... ] T =. (3) W 1 2 W M the weight vectors W is determined by some optimization (or beamforming) agorithm to yied optimum signa-tointerference (SINR) power ratio or some other objective function. The array output is mutipied by these compex weights to yied y(t) = W X(t). (4) The generated signa in (1) is fed to DSP for the computation of the optimum weight vector via LMS agorithm. The DSP processes this signa and cacuates a weight vector at each iteration, which converges to optimum weight vector [3]. In the LMS agorithm that is most widey used non-bind type adaptive agorithm introduced by Widrow & Hoff in 1959, antenna weights are recursivey obtained to minimize the mean square error using the foowing equations: w(t + 1) = w(t) + µ X(t) e (t) (5) e(t) = d(t) y(t) (6) y (t) = w H (t) X(t) (7) where w(t) is the antenna weight vector, X(t) is received signa vector at the antenna output, e (t) is the error signa between the desired response d (t) and weighted antenna output y(t). The superscripts and H, represent the compex conjugation and Hermitian operation, respectivey. µ is the step size parameter chosen as; λ max 0 < µ < (8) 10 where the λ is the eigenvaue of pre-correation matrix. The agorithm does not require measurements of the pertinent correation functions, nor does it require matrix inversion. The major benefit of the LMS agorithm is its simpicity compared to other adaptive agorithms [4,5]. III. SIMULATION SYSTEM SETUP The parameters in the signa modeing of eq (1) have been setup as summarized in Tabe 1. LMS Agorithm Conditions number of sampes 100 number of eements in the ULA desired DOA interference DOAs SINR 1, ,85,145 1,9934 2,0021 Tabe 1 Simuation vaues

3 Convergence criteria for the LMS agorithm is determined from the norm of error vector given by w = w( t + 1 ) w( t). (9) Simuation is performed according to the fow chart outined in Figure 2. This fow chart is reaized in the simuation with Matab Link for Code Composer Studio. This deveopment toos hep use Matab functions to communicate with Code Composer Studio and with information stored in memory and registers on a target DSP. With these inks, it is easy to transfer information to and from the memory and registers in the DSP. Figure 3 iustrates data fow in the simuation system. The signa received by the smart antenna array is modeed and generated in Matab in a PC. This noisy signa is fitered with the weight vector obtained via the adaptive agorithm executed in C6701 DSP.. Initiaization 1 w [n] = 0 Initiazation 2 y = 0 Acquisition read the input sampes: y X Computation 1 N = 1 w [i] X i= 0 Computation 2 e = d X µe = µ e [n], d[n] [i] PC MATLAB 6.5 signa generation performance computation CCS Target DSP EVM Board (TI C6701) Weight Computation Figure 3 Genera bock structure of simuation system IV. RESULTS AND DISCUSSION Tests for 3,5 and 7 antenna eements of uniform inear array (ULA) were performed. We assume that with this number of eements executes beamforming at the system. Tabe 2 beow tabuates the coected performance data. We consider one direct path for the desired user, and three interference signas. DSP Processing Time Antennas C6701 Cock(Cyce) C6711 Cock(Cyce) C6701 Time(msec) 0, , ,04909 C6711 Time(msec) 0, , ,19055 Sampe Computation 3 wn(k) = wn(k 1) + µex(n k) Update X (i) = X(i 1) Output Y Figure 2 Steps for impementing a LMS adaptive fiter Tabe 2 DSP beamformer processing times for various antenna numbers with various DSP (C6701 and C6711) The resuting signa and weight errors obtained with LMS agorithm are shown in Figures 4, 5 and 6 for 3, 5, and 7 ULA, respectivey. Spatia spectrums formed with the weight vector resuting from the agorithm outputs are shown in figures 7, 8, and 9. In these figures, we see that antenna array main beam direction is steered towards to DOA of the desired signa. This is because the desired signa was the strongest and the agorithm sense the signa that has the argest power as the desired signa. We note that beamwidth decreases as the number of antenna eements is increased.

4 Figure 4 Weight and signa error for m=3 antennas Figure 7 Spatia spectrum with 3 antennas Figure 5 Weight and signa error for m=5 antennas Figure 8 Spatia spectrum with 5 antennas Figure 6 Weight and signa error for m=7 antennas Figure 9 Spatia spectrum with 7 antennas

5 V. CONCLUSION In this paper we have demonstrated the use of a digita signa processor in the impementation of rea time adaptive beamforming agorithm for cdma2000 3G mobie communication systems. It seems possibe from our simuations that the proposed system (TI C6701 DSP and Matab functions) can hande optimum weight vector computation. We have found that agorithm computation time and accuracy of beam pattern direction are proportiona with the number of antenna eements. Athough, the resuts are preiminary they are vauabe in terms of finding new directions for optimizing the assemby coding in DSP and thus enabing software radio impementation of various beamformer agorithms. REFERENCES [1] T. S. Rappaport, J. C. Liberti, Smart Antennas for Wireess Communication, Prentice Ha, NJ, [2] TIA/EIA Interim Standard, Physica Layer Standard for cdma2000 spread spectrum systems, TIA/EIA/S [3] H. Im, S. Choi, and K. Lee, "Impementation of a smart antenna systems test-bed for wide-band CDMA WLL channe," Proc. VTC2000, / IEEE. [4] Naim Dahnoun, DSP Impementation using the TMS320C6000 DSP Patform, Prentice Ha, NJ, 2000 [5] Mohammad Darwish, Ceci Lau, A Software Radio Architecture for Smart Antennas, Spectrum Signa Processing,

Simultaneous Routing and Power Allocation in CDMA Wireless Data Networks

Simultaneous Routing and Power Allocation in CDMA Wireless Data Networks Simutaneous Routing and Power Aocation in CDMA Wireess Data Networks Mikae Johansson *,LinXiao and Stephen Boyd * Department of Signas, Sensors and Systems Roya Institute of Technoogy, SE 00 Stockhom,

More information

Secure Network Coding with a Cost Criterion

Secure Network Coding with a Cost Criterion Secure Network Coding with a Cost Criterion Jianong Tan, Murie Médard Laboratory for Information and Decision Systems Massachusetts Institute of Technoogy Cambridge, MA 0239, USA E-mai: {jianong, medard}@mit.edu

More information

Face Hallucination and Recognition

Face Hallucination and Recognition Face Haucination and Recognition Xiaogang Wang and Xiaoou Tang Department of Information Engineering, The Chinese University of Hong Kong {xgwang1, xtang}@ie.cuhk.edu.hk http://mmab.ie.cuhk.edu.hk Abstract.

More information

Fast Robust Hashing. ) [7] will be re-mapped (and therefore discarded), due to the load-balancing property of hashing.

Fast Robust Hashing. ) [7] will be re-mapped (and therefore discarded), due to the load-balancing property of hashing. Fast Robust Hashing Manue Urueña, David Larrabeiti and Pabo Serrano Universidad Caros III de Madrid E-89 Leganés (Madrid), Spain Emai: {muruenya,darra,pabo}@it.uc3m.es Abstract As statefu fow-aware services

More information

An FDD Wideband CDMA MAC Protocol for Wireless Multimedia Networks

An FDD Wideband CDMA MAC Protocol for Wireless Multimedia Networks An FDD ideband CDMA MAC Protoco for ireess Mutimedia Networks Xudong ang Broadband and ireess Networking (BN) Lab Schoo of Eectrica and Computer Engineering Georgia Institute of Technoogy Atanta, GA 3332

More information

Creat-Poreen Power Electronics Co., Ltd

Creat-Poreen Power Electronics Co., Ltd (STOCK CODE) 002350 Creat-Poreen Power Eectronics Co., Ltd Address: 4F, Xue Zhi Xuan Mansion, NO.16 Xue Qing Road, Hasidian District, Beijing, 100083 Te: +86 (010) 82755151 Fax: +86 (010) 82755268 Website:

More information

Wireless communication solutions. mobilise I track I protect

Wireless communication solutions. mobilise I track I protect Wireess communication soutions mobiise I track I protect The Keyine promise focuses on deivery and resuts Keyine has been engaged by our cient Taecom to assist with the promotion of their products through

More information

A Distributed MAC Scheme Supporting Voice Services in Mobile Ad Hoc Networks 1

A Distributed MAC Scheme Supporting Voice Services in Mobile Ad Hoc Networks 1 A Distributed MAC Scheme Supporting Voice Services in Mobie Ad Hoc Networks 1 Hai Jiang, Ping Wang, H. Vincent Poor, and Weihua Zhuang Department of Eectrica & Computer Engineering, University of Aberta,

More information

Introduction to XSL. Max Froumentin - W3C

Introduction to XSL. Max Froumentin - W3C Introduction to XSL Max Froumentin - W3C Introduction to XSL XML Documents Stying XML Documents XSL Exampe I: Hamet Exampe II: Mixed Writing Modes Exampe III: database Other Exampes How do they do that?

More information

An Integrated Data Management Framework of Wireless Sensor Network

An Integrated Data Management Framework of Wireless Sensor Network An Integrated Data Management Framework of Wireess Sensor Network for Agricutura Appications 1,2 Zhao Liang, 2 He Liyuan, 1 Zheng Fang, 1 Jin Xing 1 Coege of Science, Huazhong Agricutura University, Wuhan

More information

With the arrival of Java 2 Micro Edition (J2ME) and its industry

With the arrival of Java 2 Micro Edition (J2ME) and its industry Knowedge-based Autonomous Agents for Pervasive Computing Using AgentLight Fernando L. Koch and John-Jues C. Meyer Utrecht University Project AgentLight is a mutiagent system-buiding framework targeting

More information

COMPARISON OF DIFFUSION MODELS IN ASTRONOMICAL OBJECT LOCALIZATION

COMPARISON OF DIFFUSION MODELS IN ASTRONOMICAL OBJECT LOCALIZATION COMPARISON OF DIFFUSION MODELS IN ASTRONOMICAL OBJECT LOCALIZATION Františe Mojžíš Department of Computing and Contro Engineering, ICT Prague, Technicá, 8 Prague frantise.mojzis@vscht.cz Abstract This

More information

Mapping of Secondary Virtual Networks onto Wireless Substrate based on. Cognitive Radio: multi-objective formulation and analysis

Mapping of Secondary Virtual Networks onto Wireless Substrate based on. Cognitive Radio: multi-objective formulation and analysis Mapping of Secondary Virtua Networks onto Wireess Substrate based on Cognitive Radio: muti-obective formuation and anaysis Andson Marreiros Baieiro 1 and Kevin Lopes Dias Center of Informatics (CIn) Federa

More information

Figure 1. A Simple Centrifugal Speed Governor.

Figure 1. A Simple Centrifugal Speed Governor. ENGINE SPEED CONTROL Peter Westead and Mark Readman, contro systems principes.co.uk ABSTRACT: This is one of a series of white papers on systems modeing, anaysis and contro, prepared by Contro Systems

More information

Virtual trunk simulation

Virtual trunk simulation Virtua trunk simuation Samui Aato * Laboratory of Teecommunications Technoogy Hesinki University of Technoogy Sivia Giordano Laboratoire de Reseaux de Communication Ecoe Poytechnique Federae de Lausanne

More information

Traffic classification-based spam filter

Traffic classification-based spam filter Traffic cassification-based spam fiter Ni Zhang 1,2, Yu Jiang 3, Binxing Fang 1, Xueqi Cheng 1, Li Guo 1 1 Software Division, Institute of Computing Technoogy, Chinese Academy of Sciences, 100080, Beijing,

More information

Fast Image Acquisition in Pulse-Echo Ultrasound Imaging Using Compressed Sensing

Fast Image Acquisition in Pulse-Echo Ultrasound Imaging Using Compressed Sensing Fast Image Acquisition in Puse-Echo Utrasound Imaging Using Compressed Sensing Martin F. Schiffner and Georg Schmitz Chair of Medica Engineering, Ruhr-Universität Bochum, D-4481 Bochum, Germany Copyright

More information

Dynamic Pricing Trade Market for Shared Resources in IIU Federated Cloud

Dynamic Pricing Trade Market for Shared Resources in IIU Federated Cloud Dynamic Pricing Trade Market or Shared Resources in IIU Federated Coud Tongrang Fan 1, Jian Liu 1, Feng Gao 1 1Schoo o Inormation Science and Technoogy, Shiiazhuang Tiedao University, Shiiazhuang, 543,

More information

GREEN: An Active Queue Management Algorithm for a Self Managed Internet

GREEN: An Active Queue Management Algorithm for a Self Managed Internet : An Active Queue Management Agorithm for a Sef Managed Internet Bartek Wydrowski and Moshe Zukerman ARC Specia Research Centre for Utra-Broadband Information Networks, EEE Department, The University of

More information

Iterative Water-filling for Load-balancing in Wireless LAN or Microcellular Networks

Iterative Water-filling for Load-balancing in Wireless LAN or Microcellular Networks terative Water-fiing for Load-baancing in Wireess LAN or Microceuar Networks Jeremy K. Chen Theodore S. Rappaport Gustavo de Veciana Wireess Networking and Communications Group (WNCG), be University of

More information

Enhanced continuous, real-time detection, alarming and analysis of partial discharge events

Enhanced continuous, real-time detection, alarming and analysis of partial discharge events DMS PDMG-RH DMS PDMG-RH Partia discharge monitor for GIS Partia discharge monitor for GIS Enhanced continuous, rea-time detection, aarming and anaysis of partia discharge events Unrivaed PDM feature set

More information

eg Enterprise vs. a Big 4 Monitoring Soution: Comparing Tota Cost of Ownership Restricted Rights Legend The information contained in this document is confidentia and subject to change without notice. No

More information

MICROSOFT DYNAMICS CRM

MICROSOFT DYNAMICS CRM biztech TM MICROSOFT DYNAMICS CRM Experienced professionas, proven toos and methodoogies, tempates, acceerators and vertica specific soutions maximizing the vaue of your Customer Reationships Competency

More information

The Comparison and Selection of Programming Languages for High Energy Physics Applications

The Comparison and Selection of Programming Languages for High Energy Physics Applications The Comparison and Seection of Programming Languages for High Energy Physics Appications TN-91-6 June 1991 (TN) Bebo White Stanford Linear Acceerator Center P.O. Box 4349, Bin 97 Stanford, Caifornia 94309

More information

PROPAGATION OF SURGE WAVES ON NON-HOMOGENEOUS TRANSMISSION LINES INDUCED BY LIGHTNING STROKE

PROPAGATION OF SURGE WAVES ON NON-HOMOGENEOUS TRANSMISSION LINES INDUCED BY LIGHTNING STROKE Advances in Eectrica and Eectronic Engineering 98 PROPAGATION OF SRGE WAVES ON NON-HOMOGENEOS TRANSMISSION LINES INDCED BY LIGHTNING STROKE Z. Benešová, V. Kotan WB Pisen, Facuty of Eectrica Engineering,

More information

Telephony Trainers with Discovery Software

Telephony Trainers with Discovery Software Teephony Trainers 58 Series Teephony Trainers with Discovery Software 58-001 Teephony Training System 58-002 Digita Switching System 58-003 Digita Teephony Training System 58-004 Digita Trunk Network System

More information

Advanced ColdFusion 4.0 Application Development - 3 - Server Clustering Using Bright Tiger

Advanced ColdFusion 4.0 Application Development - 3 - Server Clustering Using Bright Tiger Advanced CodFusion 4.0 Appication Deveopment - CH 3 - Server Custering Using Bri.. Page 1 of 7 [Figures are not incuded in this sampe chapter] Advanced CodFusion 4.0 Appication Deveopment - 3 - Server

More information

(12) Patent Application Publication (10) Pub. N0.: US 2006/0105797 A1 Marsan et al. (43) Pub. Date: May 18, 2006

(12) Patent Application Publication (10) Pub. N0.: US 2006/0105797 A1 Marsan et al. (43) Pub. Date: May 18, 2006 (19) United States US 20060105797A (12) Patent Appication Pubication (10) Pub. N0.: US 2006/0105797 A1 Marsan et a. (43) Pub. Date: (54) METHOD AND APPARATUS FOR (52) US. C...... 455/522 ADJUSTING A MOBILE

More information

Hybrid Interface Solutions for next Generation Wireless Access Infrastructure

Hybrid Interface Solutions for next Generation Wireless Access Infrastructure tec. Connectivity & Networks Voker Sorhage Hybrid Interface Soutions for next Generation Wireess Access Infrastructure Broadband wireess communication wi revoutionize every aspect of peope s ives by enabing

More information

gdoc Core Cross-platform document conversion, optimization and manipulation technology

gdoc Core Cross-platform document conversion, optimization and manipulation technology Patform gdoc Core Cross-patform document conversion, optimization and manipuation technoogy gdoc Core gdoc Core technoogy forms part of a new generation of word-cass eectronic document soutions from Goba

More information

WIRELESS Mesh Networks (WMNs) have recently attracted

WIRELESS Mesh Networks (WMNs) have recently attracted 3968 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 2, NO. 8, AUGUST 23 A New MPLS-Based Forwarding Paradigm for Muti-Radio Wireess Mesh Networks Stefano Avaone and Giovanni Di Stasi Abstract Routing

More information

500 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 3, MARCH 2013

500 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 3, MARCH 2013 500 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 3, NO. 3, MARCH 203 Cognitive Radio Network Duaity Agorithms for Utiity Maximization Liang Zheng Chee Wei Tan, Senior Member, IEEE Abstract We

More information

Precise assessment of partial discharge in underground MV/HV power cables and terminations

Precise assessment of partial discharge in underground MV/HV power cables and terminations QCM-C-PD-Survey Service Partia discharge monitoring for underground power cabes Precise assessment of partia discharge in underground MV/HV power cabes and terminations Highy accurate periodic PD survey

More information

Modulation Principles

Modulation Principles EGR 544 Communiation Theory 5. Charaterization of Communiation Signas and Systems Z. Aiyaziiogu Eetria and Computer Engineering Department Ca Poy Pomona Moduation Prinipes Amost a ommuniation systems transmit

More information

CONTRIBUTION OF INTERNAL AUDITING IN THE VALUE OF A NURSING UNIT WITHIN THREE YEARS

CONTRIBUTION OF INTERNAL AUDITING IN THE VALUE OF A NURSING UNIT WITHIN THREE YEARS Dehi Business Review X Vo. 4, No. 2, Juy - December 2003 CONTRIBUTION OF INTERNAL AUDITING IN THE VALUE OF A NURSING UNIT WITHIN THREE YEARS John N.. Var arvatsouakis atsouakis DURING the present time,

More information

A quantum model for the stock market

A quantum model for the stock market A quantum mode for the stock market Authors: Chao Zhang a,, Lu Huang b Affiiations: a Schoo of Physics and Engineering, Sun Yat-sen University, Guangzhou 5175, China b Schoo of Economics and Business Administration,

More information

A Similarity Search Scheme over Encrypted Cloud Images based on Secure Transformation

A Similarity Search Scheme over Encrypted Cloud Images based on Secure Transformation A Simiarity Search Scheme over Encrypted Coud Images based on Secure Transormation Zhihua Xia, Yi Zhu, Xingming Sun, and Jin Wang Jiangsu Engineering Center o Network Monitoring, Nanjing University o Inormation

More information

SELECTING THE SUITABLE ERP SYSTEM: A FUZZY AHP APPROACH. Ufuk Cebeci

SELECTING THE SUITABLE ERP SYSTEM: A FUZZY AHP APPROACH. Ufuk Cebeci SELECTING THE SUITABLE ERP SYSTEM: A FUZZY AHP APPROACH Ufuk Cebeci Department of Industria Engineering, Istanbu Technica University, Macka, Istanbu, Turkey - ufuk_cebeci@yahoo.com Abstract An Enterprise

More information

Safety Simplified TERZETTO PHARMA METRICS PVT. LTD., Contact Safety Organisation

Safety Simplified TERZETTO PHARMA METRICS PVT. LTD., Contact Safety Organisation Safety Simpified TERZETTO PHARMA METRICS PVT. LTD., Contact Safety Organisation Specific soutions to monitor the safety of the drugs a over the gobe About us We provide specific soutions to monitor the

More information

SPOTLIGHT. A year of transformation

SPOTLIGHT. A year of transformation WINTER ISSUE 2014 2015 SPOTLIGHT Wecome to the winter issue of Oasis Spotight. These newsetters are designed to keep you upto-date with news about the Oasis community. This quartery issue features an artice

More information

Avaya Remote Feature Activation (RFA) User Guide

Avaya Remote Feature Activation (RFA) User Guide Avaya Remote Feature Activation (RFA) User Guide 03-300149 Issue 5.0 September 2007 2007 Avaya Inc. A Rights Reserved. Notice Whie reasonabe efforts were made to ensure that the information in this document

More information

Link Dimensioning and LSP Optimization for MPLS Networks Supporting DiffServ EF and BE traffic classes

Link Dimensioning and LSP Optimization for MPLS Networks Supporting DiffServ EF and BE traffic classes Link Dimensioning and LSP Optimization for MPLS Networks Supporting DiffServ EF and BE traffic casses Kehang Wu and Dougas S. Reeves Departments of Eectrica and Computer Engineering and Computer Science

More information

ONE of the most challenging problems addressed by the

ONE of the most challenging problems addressed by the IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 44, NO. 9, SEPTEMBER 2006 2587 A Mutieve Context-Based System for Cassification of Very High Spatia Resoution Images Lorenzo Bruzzone, Senior Member,

More information

Scheduling in Multi-Channel Wireless Networks

Scheduling in Multi-Channel Wireless Networks Scheduing in Muti-Channe Wireess Networks Vartika Bhandari and Nitin H. Vaidya University of Iinois at Urbana-Champaign, USA vartikab@acm.org, nhv@iinois.edu Abstract. The avaiabiity of mutipe orthogona

More information

Australian Bureau of Statistics Management of Business Providers

Australian Bureau of Statistics Management of Business Providers Purpose Austraian Bureau of Statistics Management of Business Providers 1 The principa objective of the Austraian Bureau of Statistics (ABS) in respect of business providers is to impose the owest oad

More information

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 12, DECEMBER 2013 1

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 12, DECEMBER 2013 1 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 12, DECEMBER 2013 1 Scaabe Muti-Cass Traffic Management in Data Center Backbone Networks Amitabha Ghosh, Sangtae Ha, Edward Crabbe, and Jennifer

More information

A New Statistical Approach to Network Anomaly Detection

A New Statistical Approach to Network Anomaly Detection A New Statistica Approach to Network Anomay Detection Christian Caegari, Sandrine Vaton 2, and Michee Pagano Dept of Information Engineering, University of Pisa, ITALY E-mai: {christiancaegari,mpagano}@ietunipiit

More information

eye talk DIGITAL Contents

eye talk DIGITAL Contents eye tak DIGITAL Eye Tak Digita subscribers are abe to downoad a computer fie containing the atest product and price changes, as we as other vauabe resources for the management and deveopment of their practices.

More information

IT Governance Principles & Key Metrics

IT Governance Principles & Key Metrics IT Governance Principes & Key Metrics Smawood Maike & Associates, Inc. 9393 W. 110th Street 51 Corporate Woods, Suite 500 Overand Park, KS 66210 Office: 913-451-6790 Good governance processes that moves

More information

US 20090193 l46al (19) United States (12) Patent Application Publication (10) Pub. No.: US 2009/0193146 A1 Albert et al.

US 20090193 l46al (19) United States (12) Patent Application Publication (10) Pub. No.: US 2009/0193146 A1 Albert et al. US 20090193 46A (19) United States (12) Patent Appication Pubication (10) Pub. No.: US 2009/0193146 A1 Abert et a. (43) Pub. Date: Ju. 30, 2009 (54) UTLZNG VRTUAL SERVER WEGHT FOR (22) Fied: Jan. 24, 2008

More information

Cooperative Content Distribution and Traffic Engineering in an ISP Network

Cooperative Content Distribution and Traffic Engineering in an ISP Network Cooperative Content Distribution and Traffic Engineering in an ISP Network Wenjie Jiang, Rui Zhang-Shen, Jennifer Rexford, Mung Chiang Department of Computer Science, and Department of Eectrica Engineering

More information

LTE. measurement. Clark Lin Application and system support Rohde & Schwarz, Taiwan

LTE. measurement. Clark Lin Application and system support Rohde & Schwarz, Taiwan LTE Market and LTE RF measurement Cark Lin Appication and system support Rohde & Schwarz, Taiwan Technoogy evoution path 2005/2006 2007/2008 2009/2010 2011/2012 2013/2014 GSM/ GPRS EDGE, 200 khz DL: 473

More information

On Capacity Scaling in Arbitrary Wireless Networks

On Capacity Scaling in Arbitrary Wireless Networks On Capacity Scaing in Arbitrary Wireess Networks Urs Niesen, Piyush Gupta, and Devavrat Shah 1 Abstract arxiv:07112745v3 [csit] 3 Aug 2009 In recent work, Özgür, Lévêque, and Tse 2007) obtained a compete

More information

Non-orthogonal Direct Access for Small Data Transmission in Cellular MTC Networks

Non-orthogonal Direct Access for Small Data Transmission in Cellular MTC Networks Non-orthogona Direct Access for Sma Data Transmission in Ceuar MTC Networks Keng-Te Liao, Chia-Han Lee, Tzu-Ming Lin, Chien-Min Lee, and Wen-Tsuen Chen Academia Sinica, Taipei, Taiwan Industria Technoogy

More information

Ricoh Healthcare. Process Optimized. Healthcare Simplified.

Ricoh Healthcare. Process Optimized. Healthcare Simplified. Ricoh Heathcare Process Optimized. Heathcare Simpified. Rather than a destination that concudes with the eimination of a paper, the Paperess Maturity Roadmap is a continuous journey to strategicay remove

More information

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP Department of Electrical and Computer Engineering Ben-Gurion University of the Negev LAB 1 - Introduction to USRP - 1-1 Introduction In this lab you will use software reconfigurable RF hardware from National

More information

Experimental Evaluation of an Adaptive Antenna for a TDMA Mobile Telephony System

Experimental Evaluation of an Adaptive Antenna for a TDMA Mobile Telephony System Experimental Evaluation of an Adaptive Antenna for a TDMA Mobile Telephony System Jonas Strandell 1, Mattias Wennström 1, Anders Rydberg 1 and Tommy Öberg 1 Olle Gladh 2, Leonard Rexberg 2,Eric Sandberg

More information

Application-Aware Data Collection in Wireless Sensor Networks

Application-Aware Data Collection in Wireless Sensor Networks Appication-Aware Data Coection in Wireess Sensor Networks Xiaoin Fang *, Hong Gao *, Jianzhong Li *, and Yingshu Li +* * Schoo of Computer Science and Technoogy, Harbin Institute of Technoogy, Harbin,

More information

A Comparison of Software Packages for X-Ray Fluorescence Analysis of Silicates on Fusion Disks

A Comparison of Software Packages for X-Ray Fluorescence Analysis of Silicates on Fusion Disks 743 A Comparison of Software Packages for X-Ray Fuorescence Anaysis of Siicates on Fusion Disks HCC Coete Counci for Geoscience, Private Bag X 12, Pretoria, 0001, South Africa Abstract A fixed set of corrected

More information

Sketch-based Network-wide Traffic Anomaly Detection

Sketch-based Network-wide Traffic Anomaly Detection Sketch-based Network-wide Traffic Anomay Detection Yang Liu, Linfeng Zhang, and Yong Guan Department of Eectrica and Computer Engineering Iowa State University, Ames, Iowa 500 Emai: {yang, zhangf, guan}@iastate.edu

More information

Teamwork. Abstract. 2.1 Overview

Teamwork. Abstract. 2.1 Overview 2 Teamwork Abstract This chapter presents one of the basic eements of software projects teamwork. It addresses how to buid teams in a way that promotes team members accountabiity and responsibiity, and

More information

Demonstration of a Software Defined Radio Platform for dynamic spectrum allocation.

Demonstration of a Software Defined Radio Platform for dynamic spectrum allocation. Demonstration of a Software Defined Radio Platform for dynamic spectrum allocation. Livia Ruiz Centre for Telecommunications Value-Chain Research Institute of Microelectronic and Wireless Systems, NUI

More information

Oracle Hyperion Tax Provision. User's Guide Release 11.1.2.2

Oracle Hyperion Tax Provision. User's Guide Release 11.1.2.2 Orace Hyperion Tax Provision User's Guide Reease 11.1.2.2 Tax Provision User's Guide, 11.1.2.2 Copyright 2013, Orace and/or its affiiates. A rights reserved. Authors: EPM Information Deveopment Team Orace

More information

SAP Business Analytics. Services & Solutions for the Metals and Mining Industry

SAP Business Analytics. Services & Solutions for the Metals and Mining Industry SAP Business Anaytics Services & Soutions for the Metas and Mining Industry Niche Business Anaytics Soutions & Services SAP Soutions SAP Business Inteigence Enterprise Data warehousing Reporting & Dashboards

More information

Cognizant Interactive. Digital Marketing & Analytics(DMA) Practice. 2012, Cognizant

Cognizant Interactive. Digital Marketing & Analytics(DMA) Practice. 2012, Cognizant Cognizant Interactive Digita Marketing & Anaytics(DMA) Practice 2012, Cognizant About DMA group Cognizant Interactive provides innovative soutions for design, content, earning, digita marketing and anaytics

More information

ADAPTIVE ALGORITHMS FOR ACOUSTIC ECHO CANCELLATION IN SPEECH PROCESSING

ADAPTIVE ALGORITHMS FOR ACOUSTIC ECHO CANCELLATION IN SPEECH PROCESSING www.arpapress.com/volumes/vol7issue1/ijrras_7_1_05.pdf ADAPTIVE ALGORITHMS FOR ACOUSTIC ECHO CANCELLATION IN SPEECH PROCESSING 1,* Radhika Chinaboina, 1 D.S.Ramkiran, 2 Habibulla Khan, 1 M.Usha, 1 B.T.P.Madhav,

More information

Chapter 3: e-business Integration Patterns

Chapter 3: e-business Integration Patterns Chapter 3: e-business Integration Patterns Page 1 of 9 Chapter 3: e-business Integration Patterns "Consistency is the ast refuge of the unimaginative." Oscar Wide In This Chapter What Are Integration Patterns?

More information

Design and Analysis of a Hidden Peer-to-peer Backup Market

Design and Analysis of a Hidden Peer-to-peer Backup Market Design and Anaysis of a Hidden Peer-to-peer Backup Market Sven Seuken, Denis Chares, Max Chickering, Mary Czerwinski Kama Jain, David C. Parkes, Sidd Puri, and Desney Tan December, 2015 Abstract We present

More information

INSTRUMENTATION FOR SOUND & VIBRATION MEASUREMENTS

INSTRUMENTATION FOR SOUND & VIBRATION MEASUREMENTS INSTRUMENTATION FOR SOUND & VIBRATION MEASUREMENTS SVAN 979 Sound & Vibration Anayser The most advanced and powerfu singe channe SLM & Vibration Meter ever made Extremey powerfu Type 1 SLM (IEC 61672:2002)

More information

Learning from evaluations Processes and instruments used by GIZ as a learning organisation and their contribution to interorganisational learning

Learning from evaluations Processes and instruments used by GIZ as a learning organisation and their contribution to interorganisational learning Monitoring and Evauation Unit Learning from evauations Processes and instruments used by GIZ as a earning organisation and their contribution to interorganisationa earning Contents 1.3Learning from evauations

More information

We are XMA and Viglen.

We are XMA and Viglen. alearn with Microsoft 16pp 21.07_Layout 1 22/12/2014 10:49 Page 1 FRONT COVER alearn with Microsoft We are XMA and Vigen. Ca us now on 0115 846 4900 Visit www.xma.co.uk/aearn Emai alearn@xma.co.uk Foow

More information

ADVANCED ACCOUNTING SOFTWARE FOR GROWING BUSINESSES

ADVANCED ACCOUNTING SOFTWARE FOR GROWING BUSINESSES ADVANCED ACCOUNTING SOFTWARE FOR GROWING BUSINESSES Product Features 1. System 2. Saes Ledger Unimited companies with password protection User security Muti-user system: 1 user comes as standard, up to

More information

Insertion and deletion correcting DNA barcodes based on watermarks

Insertion and deletion correcting DNA barcodes based on watermarks Kracht and Schober BMC Bioinformatics (2015) 16:50 DOI 10.1186/s12859-015-0482-7 METHODOLOGY ARTICLE Open Access Insertion and deetion correcting DNA barcodes based on watermarks David Kracht * and Steffen

More information

Lecture 7 Datalink Ethernet, Home. Datalink Layer Architectures

Lecture 7 Datalink Ethernet, Home. Datalink Layer Architectures Lecture 7 Dataink Ethernet, Home Peter Steenkiste Schoo of Computer Science Department of Eectrica and Computer Engineering Carnegie Meon University 15-441 Networking, Spring 2004 http://www.cs.cmu.edu/~prs/15-441

More information

Log-Likelihood Ratio-based Relay Selection Algorithm in Wireless Network

Log-Likelihood Ratio-based Relay Selection Algorithm in Wireless Network Recent Advances in Electrical Engineering and Electronic Devices Log-Likelihood Ratio-based Relay Selection Algorithm in Wireless Network Ahmed El-Mahdy and Ahmed Walid Faculty of Information Engineering

More information

White Paper: Microcells A Solution to the Data Traffic Growth in 3G Networks?

White Paper: Microcells A Solution to the Data Traffic Growth in 3G Networks? White Paper: Microcells A Solution to the Data Traffic Growth in 3G Networks? By Peter Gould, Consulting Services Director, Multiple Access Communications Limited www.macltd.com May 2010 Microcells were

More information

Sage Accounts Production Range

Sage Accounts Production Range Sage Accounts Production Range The abiity to dri-down from the face of the accounts makes reviewing accounts so easy. Sage Accounts Production Software As individua as you and your cients Jim O Leary,

More information

Risk Margin for a Non-Life Insurance Run-Off

Risk Margin for a Non-Life Insurance Run-Off Risk Margin for a Non-Life Insurance Run-Off Mario V. Wüthrich, Pau Embrechts, Andreas Tsanakas February 2, 2011 Abstract For sovency purposes insurance companies need to cacuate so-caed best-estimate

More information

Chapter 1 Structural Mechanics

Chapter 1 Structural Mechanics Chapter Structura echanics Introduction There are many different types of structures a around us. Each structure has a specific purpose or function. Some structures are simpe, whie others are compex; however

More information

Research Article Efficient Pairing-Free Privacy-Preserving Auditing Scheme for Cloud Storage in Distributed Sensor Networks

Research Article Efficient Pairing-Free Privacy-Preserving Auditing Scheme for Cloud Storage in Distributed Sensor Networks Internationa Journa of Distributed Sensor Networks Voume 2015, Artice ID 593759, 10 pages http://dx.doi.org/10.1155/2015/593759 Research Artice Efficient Pairing-Free Privacy-Preserving Auditing Scheme

More information

Energy Density / Energy Flux / Total Energy in 3D

Energy Density / Energy Flux / Total Energy in 3D Lecture 5 Phys 75 Energy Density / Energy Fux / Tota Energy in D Overview and Motivation: In this ecture we extend the discussion of the energy associated with wave otion to waves described by the D wave

More information

Algorithms for Distributed Programmable Controllers

Algorithms for Distributed Programmable Controllers Agorithms for Distributed Programmabe Controers Boyang Zhou and Chunming Wu Institute of Computer System Architecture Zhejiang University Hangzhou 310027, China {zby,wuchunming}@zju.edu.cn Xiaoyan Hong

More information

CERTIFICATE COURSE ON CLIMATE CHANGE AND SUSTAINABILITY. Course Offered By: Indian Environmental Society

CERTIFICATE COURSE ON CLIMATE CHANGE AND SUSTAINABILITY. Course Offered By: Indian Environmental Society CERTIFICATE COURSE ON CLIMATE CHANGE AND SUSTAINABILITY Course Offered By: Indian Environmenta Society INTRODUCTION The Indian Environmenta Society (IES) a dynamic and fexibe organization with a goba vision

More information

We focus on systems composed of entities operating with autonomous control, such

We focus on systems composed of entities operating with autonomous control, such Middeware Architecture for Federated Contro Systems Girish Baiga and P.R. Kumar University of Iinois at Urbana-Champaign A federated contro system (FCS) is composed of autonomous entities, such as cars,

More information

Green supply chain management in the electronic industry

Green supply chain management in the electronic industry Int. J. Environ. Sci. Tech., 5 (2), 205-216, Spring 2008 ISSN: 1735-1472 C. W. Hsu; A. H. Hu IRSEN, CEERS, IAU Green suppy chain management in the eectronic industry *C. W. Hsu; A. H. Hu Institute of Environmenta

More information

An Algorithm for Automatic Base Station Placement in Cellular Network Deployment

An Algorithm for Automatic Base Station Placement in Cellular Network Deployment An Algorithm for Automatic Base Station Placement in Cellular Network Deployment István Törős and Péter Fazekas High Speed Networks Laboratory Dept. of Telecommunications, Budapest University of Technology

More information

WHITE PAPER BEsT PRAcTIcEs: PusHIng ExcEl BEyond ITs limits WITH InfoRmATIon optimization

WHITE PAPER BEsT PRAcTIcEs: PusHIng ExcEl BEyond ITs limits WITH InfoRmATIon optimization Best Practices: Pushing Exce Beyond Its Limits with Information Optimization WHITE Best Practices: Pushing Exce Beyond Its Limits with Information Optimization Executive Overview Microsoft Exce is the

More information

DOING BUSINESS WITH THE REGION OF PEEL A GUIDE FOR NEW AND CURRENT VENDORS

DOING BUSINESS WITH THE REGION OF PEEL A GUIDE FOR NEW AND CURRENT VENDORS DOING BUSINESS WITH THE REGION OF PEEL A GUIDE FOR NEW AND CURRENT VENDORS TABLE OF CONTENTS INTRODUCTION... 1 GOVERNANCE... 1 COMMONLY PURCHASED GOODS AND SERVICES... 1 HOW TO REGISTER YOUR COMPANY...

More information

Network/Communicational Vulnerability

Network/Communicational Vulnerability Automated teer machines (ATMs) are a part of most of our ives. The major appea of these machines is convenience The ATM environment is changing and that change has serious ramifications for the security

More information

LTE technology introduction

LTE technology introduction LTE technoogy introduction My business card ROHDE & SCHWARZ Taiwan Ltd. 14F,No.13,Sec. 2,Pei-Tou Road, Taipei, 112,Taiwan, R.O.C. Lance Yang ( 楊 聯 甫 ) Appication Engineer Appication & System Support Phone:

More information

Ericsson T18s Voice Dialing Simulator

Ericsson T18s Voice Dialing Simulator Ericsson T18s Voice Dialing Simulator Mauricio Aracena Kovacevic, Anna Dehlbom, Jakob Ekeberg, Guillaume Gariazzo, Eric Lästh and Vanessa Troncoso Dept. of Signals Sensors and Systems Royal Institute of

More information

Leakage detection in water pipe networks using a Bayesian probabilistic framework

Leakage detection in water pipe networks using a Bayesian probabilistic framework Probabiistic Engineering Mechanics 18 (2003) 315 327 www.esevier.com/ocate/probengmech Leakage detection in water pipe networks using a Bayesian probabiistic framework Z. Pouakis, D. Vaougeorgis, C. Papadimitriou*

More information

alllearn Microsoft with We are XMA. Call us now on 0115 846 4900 Visit www.xma.co.uk/alllearn Email alllearn@xma.co.uk Follow us @WeareXMA

alllearn Microsoft with We are XMA. Call us now on 0115 846 4900 Visit www.xma.co.uk/alllearn Email alllearn@xma.co.uk Follow us @WeareXMA alearn with Microsoft We are XMA. Ca us now on 0115 846 4900 Visit www.xma.co.uk/aearn Emai alearn@xma.co.uk Foow us @WeareXMA Introduction Use our 'steps to alearn' framework to ensure you cover a bases...

More information

RF Measurements Using a Modular Digitizer

RF Measurements Using a Modular Digitizer RF Measurements Using a Modular Digitizer Modern modular digitizers, like the Spectrum M4i series PCIe digitizers, offer greater bandwidth and higher resolution at any given bandwidth than ever before.

More information

CUSTOM. Putting Your Benefits to Work. COMMUNICATIONS. Employee Communications Benefits Administration Benefits Outsourcing

CUSTOM. Putting Your Benefits to Work. COMMUNICATIONS. Employee Communications Benefits Administration Benefits Outsourcing CUSTOM COMMUNICATIONS Putting Your Benefits to Work. Empoyee Communications Benefits Administration Benefits Outsourcing Recruiting and retaining top taent is a major chaenge facing HR departments today.

More information

ACO and SVM Selection Feature Weighting of Network Intrusion Detection Method

ACO and SVM Selection Feature Weighting of Network Intrusion Detection Method , pp. 129-270 http://dx.doi.org/10.14257/ijsia.2015.9.4.24 ACO and SVM Seection Feature Weighting of Network Intrusion Detection Method Wang Xingzhu Furong Coege Hunan, University of Arts and Science,

More information

Semantics-based design for Secure Web Services

Semantics-based design for Secure Web Services 1 Semantics-based design for Secure Web Services Massimo Bartoetti Pierpaoo Degano Gian Luigi Ferrari Roberto Zunino bart@di.unipi.it degano@di.unipi.it giangi@di.unipi.it zunino@di.unipi.it Dipartimento

More information

A Supplier Evaluation System for Automotive Industry According To Iso/Ts 16949 Requirements

A Supplier Evaluation System for Automotive Industry According To Iso/Ts 16949 Requirements A Suppier Evauation System for Automotive Industry According To Iso/Ts 16949 Requirements DILEK PINAR ÖZTOP 1, ASLI AKSOY 2,*, NURSEL ÖZTÜRK 2 1 HONDA TR Purchasing Department, 41480, Çayırova - Gebze,

More information

Enhancing the SNR of the Fiber Optic Rotation Sensor using the LMS Algorithm

Enhancing the SNR of the Fiber Optic Rotation Sensor using the LMS Algorithm 1 Enhancing the SNR of the Fiber Optic Rotation Sensor using the LMS Algorithm Hani Mehrpouyan, Student Member, IEEE, Department of Electrical and Computer Engineering Queen s University, Kingston, Ontario,

More information

Analysis of Immunity by RF Wireless Communication Signals

Analysis of Immunity by RF Wireless Communication Signals 64 PIERS Proceedings, Guangzhou, China, August 25 28, 2014 Analysis of Immunity by RF Wireless Communication Signals Hongsik Keum 1, Jungyu Yang 2, and Heung-Gyoon Ryu 3 1 EletroMagneticwave Technology

More information