Wireless radio cell. Fixed Network
|
|
|
- Jessie Andrews
- 8 years ago
- Views:
Transcription
1 DataManagementforMobileComputing ComputerScienceDepartment, EvaggeliaPitoura UniversityofIoannina, Ioannina,Greece SummerSchool,Jyvaskyla,August1998 &
2 Introduction -mobileornomadiccomputing -wireless -ubiquitous -personal Architecture Wireless radio cell Mobile Mobile Fixed Base Station Fixed Mobile 1 Mbps Base Station Fixed Fixed Network Mbps to Gbps Fixed Base Station 9 Kbps Mobile Wireless radio cell Wireless LAN cell & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 1
3 Key:Mobility,WirelessCommunications,Portability [7,2,4,1] Mobility Thelocationofmobileelementsandthereforetheirpointof Theconsequencesofmobilityarenumerous. attachmenttothexednetworkchangeastheymove. Thecongurationofasystemthatincludesmobileelementsis notstatic.thus, 2.Thecenterofactivity,thesystemload,andlocalitychange 1.Indesigningdistributedalgorithms,wecannomorerely onaxedtopology. Locationmanagement dynamically. 2.Ecientdatastructures,algorithms,andqueryexecution 1.Thesearchcosttolocatemobileelementsisaddedtothe plansmustbedevisedforrepresenting,managing,and costofeachcommunicationinvolvingthem. queryingthelocationofmobileelements,whichisaafast changingdata. & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 2
4 Mobility(continued) Heterogeneity 1.Connectivitybecomeshighlyvariantinperformanceand reliability.forinstance,outdoors,amobileclientmayhave torelyonlowbandwidthnetworks,whileinsideabuilding itmaybeoeredreliablehigh-bandwidthconnectivityor evenoperateconnectedviawirelineconnections. 2.Thenumberofdevicesinanetworkcellchangeswith Moreover,theremaybeareaswithnoadequatecoverage resultingindisconnectionsofvariousdurations. 3.Theremaybealsovariabilityintheprovisionofspecic time,andsodoboththeloadatthebasestationand bandwidthavailability. 4.Theresourcesavailabletoamobileelementvary,for services,suchasinthetypeofavailableprintersor weatherreports. example,adockedcomputerhasmorememoryoris equippedwithalargerscreen. issues. Mobilityalsoraisesveryimportantsecurityandauthentication & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 3
5 WirelessMedium Wirelessnetworksaremoreexpensive,oerlessbandwidth, (WeakandIntermittentConnectivity) Wirelesscommunicationsfacemanyobstaclesbecausethe andarelessreliablethanwirelinenetworks. Thus,whilethegrowthinwirednetworkbandwidthhasbeen surroundingenvironmentinteractswiththesignal. tremendous(incurrenttechnologyethernetprovides10mbps, FDDI100MbpsandATM155Mbps),productsforwireless communicationachieveonly19kbpsforpacketradio communications,and9-14kbpsforcellulartelephony.the Mbpsanditisexpectedtoincreaseto10Mbps[5]. typicalbandwidthofwirelesslansrangesfrom250kbpsto2 Sincethebandwidthisdividedamongtheuserssharingacell, thedeliverablebandwidthperuserisevenlower. Forradiotransmissiontheerrorrateissohighthattheeective bandwidthislimitedtolessthan10kbps[6]. Furthermore,datatransmissionovertheairiscurrently Thus,bandwidthisascarceresource. Mobileelementsmayvoluntaryoperatedisconnected. monetarilyexpensive[3]. & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 4
6 WirelessMedium(continued) {(VariantConnectivity) Wirelesstechnologiesvaryonthedegreeofbandwidthand reliabilitytheyprovide. Thereisahighbandwidthbroadcastchannelfromthebase {(BroadcastFacility) stationtoallmobileclientsinitscell. {(Tarrifs) chargedperconnection-time,whileforothers(e.g.,inpacket radio),itischargedpermessage(packet). Forsomenetworks(e.g.,incellulartelephones),networkaccessis & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 5
7 PortabilityofMobileElements elements. {Mobileelementsareresourcepoorwhencomparedtostatic Mobileelementsmustbelightandsmalltobeeasilycarried around.suchconsiderations,inconjunctionwithagivencostand resourcesthanstaticelements,includingmemory,screensizeand leveloftechnology,willkeepmobileelementshavingless diskcapacity. Thisresultsinanasymmetrybetweenstaticandmobileelements. Evenwithadvancesinbatterytechnology,thisconcernwillnot {Mobileelementsrelyonbattery. ceasetoexist. Concernforpowerconsumptionmustspanvariouslevelsin Mobileelementsareeasiertobeaccidentallydamaged,stolen, hardwareandsoftwaredesign. orlost. Thus,theyarelesssecureandreliablethanstaticelements. & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 6
8 Summary Characteristics of wireless communications Frequent disconnections Predictable disconnections Physical support for broadcast Asymmetry Monetarily expensive Relatively unreliable High bandwidth variability Low bandwidth NetworkDisconnections predictableorsudden. voluntaryorforced shortdisconnectionsandlong Disconnectedoperation Characteristics of mobile elements Limited resources: Limited memory Limited computational power Small screen Limited battery life Relatively unreliable Variability in resources Frequent location updates & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 7
9 Satya'svisionofahypotheticaltripintheyear2000[8]: AnExample Imagineyouaresittingatyouroceworkingonareport storedinasharedlesystem.soon,itistimetoleave.you useyourmachinetocallforataxi.youcontinueworkingas necessarylesareprefetchedinyournotebook.whenthetaxi arrives,youpickupyournotebookandleave. Ontheridetotheairport,youcontinueworking.Your notebookrecognizesthatitisnolongeronalan,but transparenttoyou.younishediting,savethele,andsend continuescommunicatingviaacellularmodem.thereare toyourcoauthor.attheairport,whilewaitingfor somegapsincommunication,buttheyremaincompletely boarding,youuseyournotebookforweb-browsing.whileon yournotebookdiscoversthattelephonechargesareveryhigh. board,youstartworkingonyourslides.althougheachseatis equippedwithanoutletforair-to-groundtelephoneservice, deferallcommunication.yourrequestsforsomeoldgures Thus,itwiselydecidestoletyouoperatedisconnectedand Whenyouarriveatyourhotelroom,yournotebookdiscovers arealsopostponedforlaterservice. fetchesnewversionsofthelesyouhadcached,andpicksup thatthehotel'slate-nighttelephonechargesarelow.it yourmailandtheguresyouhaverequested. thereforepropagatesthechangesyouhavemadesofar, & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 8
10 Nextmorning,youpresentyourtalk.Yournotebooksenses AnExample(continued) anewpieceofuser-interfacesoftware,yourareabletogivea thepresenceofalargewall-sizeddisplayandshowsyour slidesonitthroughaninfraredlink.sinceyourtalkisabout Nextday,youdecidetodosomesightseeingandrentacar. livedemoofitusingyournotebook. Thecarisprovidedwithanavigatinginteractivescreenmap thatyouusetotourthecity.themapisintelligentenough toavoidtracjamsbylisteningtoperiodicallybroadcasted avideodescribingthefeaturesofthesiteisseenandthe thatdownloadsaguidedtourofthesite.asyouwalkaround, tracinformation.whenyouarrive,yougrabyournotebook yourtravelitineraryfromyournotebookandarrangesfor purchaseat-shirtatthegiftshop.thestoreclerkobtains accompanyingcommentaryisheard.beforeleaving,you yourdutyfreepurchasetobedeliveredtothecorrectgate. metro,youuseyournotebooktowatchcnn.fromtimeto Nextmorningyoutakethemetrototheairport.Onthe blackandwhite.whenyouarriveattheairport,youpickup displayedimagedegeneratesfromfull-motiontoslow-scan time,asthetraingoesthroughregionsofpoorreception,the yourgiftatthegate.duringtheightyoucanrelax:your notebookhasbeenrecordingyourpurchasesandisnow automaticallypreparinganexpensereporttobetransmitted toyoursecretaryforreimbursement. & E.Pitoura-SummerSchoolonMobileComputing,Jyvaskyla,1998 9
11 References [1]R.AlonsoandH.F.Korth.DatabaseSysteminNomadicComputing.InProceedingsofthe1993 [2]G.H.FormanandJ.Zahorjan.TheChallengesofMobileComputing.IEEEComputer,27(6):38{47,April SIGMODConference,Washington,D.C.,May1993. [4]T.ImielinksiandB.R.Badrinath.WirelessMobileComputing:ChallengesinDataManagement. [3]D.Hayden.TheNewAgeofWireless.MobileOce,May [5]C.J.Mathias.NewLANGearSnapsUnseenDesktopChains.DataCommunications,23(5):75{80,March CommunicationsoftheACM,37(10),October1994. [7]M.Satyanarayanan.FundamentalChallengesinMobileComputing.InProceedingsofthe15thACM [6]K.Miller.CellularEssentialsforWirelessDataTransmission.DataCommunications,23(5):61{67,March [8]M.Satyanarayanan.MobileInformationAccess.IEEEPersonalCommunications,3(1),February1996. SymposiumonPrinciplesofDistributedComputing,Philadelphia,PA,May1996.
![MobileOce,May1992. 1994. [5]C.J.Mathias.NewLANGearSnapsUnseenDesktopChains.DataCommunications,23(5):75{80,March CommunicationsoftheACM,37(10),October1994. [7]M.Satyanarayanan.](/docs-images/49/17847685/images/page_11.jpg "FundamentalChallengesinMobileComputing.InProceedingsofthe15thACM [6]K.Miller.CellularEssentialsforWirelessDataTransmission.DataCommunications,23(5):61{67,March 1994. [8]M.Satyanarayanan.")
University of Cyprus
University of Cyprus Computer Science Department Data Management for Mobile Computing Introduction 1 Introduction = Mobile or nomadic computing = Wireless = Ubiquitous = Personal Architecture 2 Key Issues:
Chapter 9. Communications and Networks. McGraw-Hill/Irwin. Copyright 2008 by The McGraw-Hill Companies, Inc. All rights reserved.
Chapter 9 Communications and Networks McGraw-Hill/Irwin Copyright 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Competencies (Page 1 of 2) Discuss connectivity, the wireless revolution,
CHAPTER 7 SUMMARY AND CONCLUSION
179 CHAPTER 7 SUMMARY AND CONCLUSION This chapter summarizes our research achievements and conclude this thesis with discussions and interesting avenues for future exploration. The thesis describes a novel
Understand VLANs, Wired LANs, and Wireless LANs
LESSON 1,2_B Understand VLANs, Wired LANs, and Wireless LANs Lesson Overview In this lesson, you will review: Wired local area networks Wireless local area networks Virtual local area networks (VLANs)
Introduction Chapter 1. Uses of Computer Networks
Introduction Chapter 1 Uses of Computer Networks Network Hardware Network Software Reference Models Example Networks Network Standardization Metric Units Revised: August 2011 Uses of Computer Networks
Challenges for Nomadic Computing: Mobility Management and Wireless Communications
Challenges for Nomadic Computing: Mobility Management and Wireless Communications Thomas F. La Porta, Krishan K. Sabnani, Richard D. Gitlin Bell Laboratories 101 Crawfords Corner Rd., Room 4G-508 Holmdel
Introduction. Network Basics. Workstations. Server. Hub
Introduction If you re planning to use eivf soon, you may want to install a computer network to improve access to your eivf Provider Portal from any PC in your office. This paper provides information you
A Middleware for OSCAR and Wireless Sensor Network Environments
Federal University of Santa Catarina (UFSC) Santa Catarina - Brazil A Middleware for OSCAR and Wireless Sensor Network Environments D. J. Ferreira, M.A.R. Dantas (UFSC - INE) A. R. Pinto, C. Montez (UFSC
communication over wireless link handling mobile user who changes point of attachment to network
Wireless Networks Background: # wireless (mobile) phone subscribers now exceeds # wired phone subscribers! computer nets: laptops, palmtops, PDAs, Internet-enabled phone promise anytime untethered Internet
ACost-eectiveNear-lineStorageServerfor S.W.Lau MultimediaSystem. TheChineseUniversityofHongKong
ACost-eectiveNear-lineStorageServerfor S.W.Lau MultimediaSystem InformationEngineeringDepartment ComputerScienceDepartment P.C.Wong JohnC.S.Lui TheChineseUniversityofHongKong tems.whilemostotherworksonmultimediastorageserversassumeon-linediskstorage
Think! Think! Data communications. Long-Distance. Modems: to analog and back. Transmission Media. The last mile is the hardest for digital information
Data communications Think! Think!?? What makes it possible to communicate from point A to point B?? Long-Distance Transmission Media If you place a call outside the local transport area, an interchange
Introduction. Mobile GIS emerged in the mid-1990s to meet the needs of field work such as surveying and utility maintenance.
Mobile GIS Introduction With more than 6.8 billion mobile cellular subscribers, (2013), wireless communication and mobile computing have gained acceptance worldwide with speed that has surpassed many other
English version. Installation Windows XP and Vista. LW311 Sweex Wireless LAN Cardbus Adapter 300 Mbps
LW311 Sweex Wireless LAN Cardbus Adapter 300 Mbps Do not expose the Sweex Wireless LAN Cardbus Adapter 300 Mbps to extreme temperatures. Do not place the device in direct sun light or close to heating
Wireless Broadband Access
Wireless Broadband Access (Brought to you by RMRoberts.com) Mobile wireless broadband is a term used to describe wireless connections based on mobile phone technology. Broadband is an electronics term
Chapter 1: roadmap. Access networks and physical media
Chapter 1: roadmap 1.1 What is the nternet? 1.2 Network edge 1.3 Network core 1.4 Network access and physical media 1.5 nternet structure and SPs 1.6 elay & loss in packet-switched networks 1.7 Protocol
;l ~~! I!July 1993 Doc: IEEE P802.11-93/94a. Power Management. The importance of Power Management provisions in the MAC. By: Wim Diepstraten NCR.
;l ~~! I I!July 1993 Doc: IEEE P802.11-93/94a I Power Management The importance of Power Management provisions in the MAC By: Wim Diepstraten NCR. IJuly 1993 Wireless Network Applications Mobile computing
CPET 581 E-Commerce & Business Technologies. Topics
CPET 581 E-Commerce & Business Technologies E-Commerce Infrastructure Lecture Note 2 of 2 References: *Chapter 3. E-Commerce Infrastructure: The Internet, Web, and Mobile Platform of text book: e-commerce:
FTTH ARCHITECTURE WHITE PAPER SERIES
FTTH ARCHITECTURE WHITE PAPER SERIES BROADBAND ACCESS TECHNOLOGIES OVERVIEW BROADBAND ACCESS TECHNOLOGIES OVERVIEW Video, Cloud, and the Internet of Things these trends are having a profound effect on
THE ADVANCES OF INTEGRATED GEOSPATIAL APPLICATION IN WORKFORCE MANAGEMENT AND FIELD SERVICE OPTIMIZATION
THE ADVANCES OF INTEGRATED GEOSPATIAL APPLICATION IN WORKFORCE MANAGEMENT AND FIELD SERVICE OPTIMIZATION Naomi KELLETT GE Energy United Kingdom Naomi.Kellett@ge.com Abstract: INTRODUCTION TO FIELD SERVICES
C20.0001 Information Systems for Managers Fall 1999
New York University, Leonard N. Stern School of Business C20.0001 Information Systems for Managers Fall 1999 Networking Fundamentals A network comprises two or more computers that have been connected in
Overview of Network Hardware and Software. CS158a Chris Pollett Jan 29, 2007.
Overview of Network Hardware and Software CS158a Chris Pollett Jan 29, 2007. Outline Scales of Networks Protocol Hierarchies Scales of Networks Last day, we talked about broadcast versus point-to-point
Deployment Trends That Impact Your Business
DAS and Small Cell Solutions Deployment Trends That Impact Your Business HetNet Forum The HetNet Forum, formerly The DAS Forum, is dedicated to the advancement of heterogeneous networks. HetNets provide
Deploy WiFi Quickly and Easily
Deploy WiFi Quickly and Easily Table of Contents 3 Introduction 3 The Backhaul Challenge 4 Effortless WiFi Access 4 Rate Limiting 5 Traffic Filtering 5 Channel Selection 5 Enhanced Roaming 6 Connecting
Telecommunications, Networks, and Wireless Computing
Objectives Telecommunications, Networks, and Wireless Computing 1. What are the features of a contemporary corporate telecommunications system? On what major technology developments are they based? 2.
FWA - technology and benefit
FWA - technology and benefit Professor Torleiv Maseng adj. Professor radio communications Department of Electroscience ( Inst. för Elektrovetenskap), Lund University, LTH FWA: Point to multipoint systems
Ad Hoc Mobile Networking and General Mobility Issues
Ad Hoc Mobile Networking and General Mobility Issues Ramon Lawrence Department of Computer Science University of Manitoba umlawren@cs.umanitoba.ca May 29, 1998 1 Introduction With the increasing trends
LTE-Advanced Carrier Aggregation Optimization
Nokia Networks LTE-Advanced Carrier Aggregation Optimization Nokia Networks white paper LTE-Advanced Carrier Aggregation Optimization Contents Introduction 3 Carrier Aggregation in live networks 4 Multi-band
Technical and Troubleshooting. Guide AIRAVE 2.5
Technical and Troubleshooting Guide AIRAVE 2.5 Welcome! Sprint is committed to developing technologies addressing in-home coverage and ensuring you have a great wireless experience. This booklet provides
Forecast of Mobile Broadband Bandwidth Requirements
Forecast of Mobile Broadband Bandwidth Requirements s Executive Summary The consumption of video content is creating a shift from use in the home to mobile devices. This is driving exponential increases
ICT and Broadband in Korea. September 2011 Prof. Bae, Kyoung Yul Sangmyung University
ICT and Broadband in Korea September 2011 Prof. Bae, Kyoung Yul Sangmyung University Contents 01 Digital Convergence 02 03 04 05 06 Information Communication Technology Broadband Network Mobile Network
Mobile Communications
Mobile Communications Vincent Roca (2001-10) Claude Castelluccia (1998-2001) INRIA vincent.roca@inria.fr claude.castelluccia@inria.fr http://planete.inrialpes.fr/~roca/ Overview of the Course! Part 1:
Avancerede Datanet. Ole Brun Madsen Professor Department of Control Engineering University of Aalborg. Infrastruktur
Department of Control Engineering Distributed Real-time Systems Avancerede Datanet Infrastruktur Ole Brun Madsen Professor Department of Control Engineering University of Aalborg Avancerede Datanet Infrastructure
COMPUTERS ARE YOUR FUTURE CHAPTER 8 WIRED & WIRELESS COMMUNICATION
COMPUTERS ARE YOUR FUTURE CHAPTER 8 WIRED & WIRELESS COMMUNICATION Answers to End-of-Chapter Questions Matching g 1. whiteboard i 2. sending device o 3. streaming j 4. WiFi m 5. Webcam d 6. data transfer
Mobile Networking Concepts and Protocols CNT 5517
Mobile Networking Concepts and Protocols CNT 5517 Some slides are adapted from Dr. Dave Johnson Notes Dr. Sumi Helal, Ph.D. Professor Computer & Information Science & Engineering Department University
http://www.sprint.com/landings/airave/files/airave_access_point_faqs.pdf?intmkt=mkt:ms:20131 030:AIR:MSU:EEE:FAQs
http://www.sprint.com/landings/airave/files/airave_access_point_faqs.pdf?intmkt=mkt:ms:20131 030:AIR:MSU:EEE:FAQs Sprint AIRAVE FAQs What is the Sprint AIRAVE and how does it work? The Sprint AIRAVE is
1.264 Lecture 36 (Solutions)
1.264 Lecture 36 (Solutions) Telecom: Wireless networks Next class: Green chapter 31,33, 36, 39. No exercise. 1 Exercise Design a system for an intercity rail passenger train to provide Internet access
PERFORMANCE ANALYSIS OF ALGORITHMS FOR SUPPORTING DISCONNECTED WRITE OPERATIONS IN WIRELESS WEB ENVIRONMENTS NGOC ANH PHAN
PERFORMANCE ANALYSIS OF ALGORITHMS FOR SUPPORTING DISCONNECTED WRITE OPERATIONS IN WIRELESS WEB ENVIRONMENTS NGOC ANH PHAN A Master Thesis Submitted to the Faculty of the Virginia Polytechnic Institute
Computer Networks. Wireless and Mobile Networks. László Böszörményi Computer Networks Mobile - 1
Computer Networks Wireless and Mobile Networks László Böszörményi Computer Networks Mobile - 1 Background Number of wireless (mobile) phone subscribers now exceeds number of wired phone subscribers! Computer
Chapter 3 Cellular Networks. Wireless Network and Mobile Computing Professor: Dr. Patrick D. Cerna
Chapter 3 Cellular Networks Wireless Network and Mobile Computing Professor: Dr. Patrick D. Cerna Objectives! Understand Cellular Phone Technology! Know the evolution of evolution network! Distinguish
Mobile Broadband of Deutsche Telekom AG LTE to cover White Spaces. Karl-Heinz Laudan Deutsche Telekom AG 16 June 2011
Mobile Broadband of Deutsche Telekom AG LTE to cover White Spaces Karl-Heinz Laudan Deutsche Telekom AG 16 June 2011 Spectrum is the basis for any mobile radio communication service Satellites (1,5 2,2
Technical and economical assessment of selected LTE-A schemes.
Technical and economical assessment of selected LTE-A schemes. Heinz Droste,, Darmstadt Project Field Intelligent Wireless Technologies & Networks 1 Mobile Networks enabler for connected life & work. Textbox
ALB-W012-000en WHITE PAPER. White Paper. A proposal for Smart Metering Networking Solution. May-2012 Rev. A1
ALB-W012-000en WHITE PAPER White Paper A proposal for Smart Metering Networking Solution May-2012 Rev. A1 Introduction A smart meter is usually an electrical meter that records consumption of electric
Application of Mobile Communication Service to Enterprise Market - Now and Future -
B-Mobile(1) Application of Mobile Communication Service to Enterprise Market - Now and Future - Yutaka Yasuda, Dr.,Eng. Vice President and General Manager of Core Technology Sector KDDI Corporation 1 (M
Quick Connection and Setup Guide
3-300-262-13(1) Read this first Quick Connection and Setup Guide Quick start guide to main features GB HDD Network Audio System NAS-SC55PKE 2008 Sony Corporation Printed in Malaysia Table of Contents Checking
The Future of Telecommunications A look at the technology evolution that will shape the Telecom Biz. Roberto Saracco Future Centre Telecom Italia
The Future of Telecommunications A look at the technology evolution that will shape the Telecom Biz Roberto Saracco Future Centre Telecom Italia 50 years >>> 18 months! 2 Lloyd 3 4 5 1.436.000 km 6 7 8
Customer Fact Sheet: Critical Information Summary NBN Internet Plan(s)
Customer Fact Sheet: Critical Information Summary NBN Internet Plan(s) Information about the service The Service: Congratulations on the delivery of your new Active Utilities service delivered through
Chapter 9 Communications and Networks
Chapter 9 Communications and Networks Chapter 9 Objectives Discuss the components required for successful communications Identify various sending and receiving devices Explain the purpose of communications
Trends in multimedia over wireless broadband networks
Trends in multimedia over wireless broadband networks DRAGORAD MILOVANOVIC (1), ZORAN BOJKOVIC (2) (1) Faculty of Electrical Engineering, University of Belgrade, Bulevar Revolucije 73, 11120 Belgrade,
Introduction to Computer Networking: Trends and Issues
Introduction to Computer Networking: Trends and Issues Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu Indo-US Collaboration in Engineering Education (IUCEE) Webinar,
MOTIVE (MObile Terminal Information Value added functionality) Project: IST-027659-STP. 6th Concertation Meeting of IST-FP6 Brussels, 21/03/2006
(MObile Information Value added functionality) Project: IST-027659-STP 6th Concertation Meeting of IST-FP6 Brussels, 21/03/2006 Presentation Overview Project presentation Scope - Objectives Innovation
QoS (Quality of Service)
QoS (Quality of Service) QoS function helps you to control your network traffic for each application from LAN (Ethernet and/or Wireless) to WAN (Internet). It facilitates you to control the different quality
Chapter 2 Configuring Your Wireless Network and Security Settings
Chapter 2 Configuring Your Wireless Network and Security Settings This chapter describes how to configure the wireless features of your DG834N RangeMax TM NEXT Wireless ADSL2+ Modem Router. For a wireless
Application Note License-Exempt Gigabit Ethernet Microwave Radio Applications
Application Note License-Exempt Gigabit Ethernet Microwave Radio Applications Applicable Products: EX-5r GigE, EX-5r-c GigE Introduction The accelerated growth of fixed and mobile wireless broadband services
Top-Down Network Design
Top-Down Network Design Chapter Four Characterizing Network Traffic Copyright 2010 Cisco Press & Priscilla Oppenheimer Network Traffic Factors Traffic flow unidirectional, bidirectional symmetric, asymmetric
The Cell Phone and the Future of Mobile Computing
The Cell Phone and the Future of Mobile Computing UCLA / CENS Roy Want, Principal Engineer CTG & Intel Research 18 th May 2007 Talk Overview SELL MORE SILICON Observations about the mobile market Technology
ICANN Remote Participation Hub Technical Documentation
ICANN Remote Participation Hub Technical Documentation Revised: 2015-08-26 JTB Remote Hub Technical Documentation Page 2 Remote Participation In order for groups of individuals to remotely participate
Product Overview. Steve Erickson
Product Overview Steve Erickson Memorylink products GPS-100C Flanger About Flanger TDM over IP, wired or wireless applications Wireless T1/E1 using Ethernet radios 1-4 T1 s or E1 s per unit Additional
Satellite TV and communication: Please contact AsiaWorld-Expo for details of satellite TV and satellite bandwidth connections.
ADDITIONAL ICT SERVICES FOR WORLD 2006 AsiaWorld-Expo s ICT infrastructure provides exhibitors with a wide range of services from telephony (analogue and IP, broadband and wireless internet services, ISDN
Wireless Local Area Network
Wireless Local Area Network ดร. อน นต ผลเพ ม Anan Phonphoem, Ph.D. anan@cpe.ku.ac.th http://www.cpe.ku.ac.th/~anan Computer Engineering Department Kasetsart University, Bangkok, Thailand iwing Lab CPE
A survey on the application of computer network technologies and services over heterogeneous environment in higher educational institutes
International Journal of Education and Development using Information and Communication Technology (IJEDICT), 2008, Vol. 4, Issue 1, pp. 95-108. A survey on the application of computer network technologies
The future of mobile networking. David Kessens <david.kessens@nsn.com>
The future of mobile networking David Kessens Introduction Current technologies Some real world measurements LTE New wireless technologies Conclusion 2 The future of mobile networking
LTE, WLAN, BLUETOOTHB
LTE, WLAN, BLUETOOTHB AND Aditya K. Jagannatham FUTURE Indian Institute of Technology Kanpur Commonwealth of Learning Vancouver 4G LTE LTE (Long Term Evolution) is the 4G wireless cellular standard developed
ECE 510 -- Chapter 1
ECE 510 -- Chapter 1 Definition: Digital Subscriber Line (DSL) Public network technology that delivers high bandwidth over conventional copper wiring at limited distances. There are four major types of
Unit of Learning # 2 The Physical Layer. Sergio Guíñez Molinos sguinez@utalca.cl 2-2009
Unit of Learning # 2 The Physical Layer Sergio Guíñez Molinos sguinez@utalca.cl 2-2009 Local Area Network (LAN) Redes de Computadores 2 Historic topologies more used in LAN Ethernet Logical Bus and Physical
4G-Quadruple Play High Speed Mobile Broadband Technologies
4G-Quadruple Play High Speed Mobile Broadband Technologies Author: Venkat Annadata Next Generation Networks. Abstract: 4G or the 4th generation technologies promise the full mobility with high speed internet
Bluetooth networking to get data to a central data sink
Bluetooth networking to get data to a central data sink By: Bradley Clayton Supervised by: Alfredo Terzoli and Peter Wentworth http://www.cs.ru.ac.za/research/students/g01c2974/ g01c2974@campus.ru.ac.za
Chapter 11: WAN. Abdullah Konak School of Information Sciences and Technology Penn State Berks. Wide Area Networks (WAN)
Chapter 11: WAN Abdullah Konak School of Information Sciences and Technology Penn State Berks Wide Area Networks (WAN) The scope of a WAN covers large geographic areas including national and international
DOCUMENT REFERENCE: SQ303-002-EN FIXED BROADBAND WHITEBOX SAMKNOWS BRIEFING. August 2015
DOCUMENT REFERENCE: SQ303-002-EN FIXED BROADBAND WHITEBOX SAMKNOWS BRIEFING August 2015 SAMKNOWS QUALITY CONTROLLED DOCUMENT. SQ REV LANG STATUS OWNER DATED 303 003 EN DRAFT SC 20150810 REVISION HISTORY
GSM Gateway Function Overview
Function Overview AP-GSM1002 (2-Port) AP-GSM1004 (4-Port) AddPac Technology AP-GSM1001 (1-Port) 2010, Sales and Marketing www.addpac.com Contents GSM Outbound Call GSM Inbound Call VoIP to GSM Outbound
Storage Area Networks (SANs) and iscsi Protocol An Introduction to New Storage Technologies
Page 1 Storage Area Networks (SANs) and iscsi Protocol An Introduction to New Storage Technologies Introduction This paper explains the concepts of Storage Area Network or SAN, iscsi technology and how
CS4700/CS5700 Fundamentals of Computer Networking
CS4700/CS5700 Fundamentals of Computer Networking Prof. Alan Mislove Lecture 2: Overview Slides adapted with permission from Eugene Ng, Rice COMP 413 September 10th, 2009 What is a network? 2 What is a
Chapter 9A. Network Definition. The Uses of a Network. Network Basics
Chapter 9A Network Basics 1 Network Definition Set of technologies that connects computers Allows communication and collaboration between users 2 The Uses of a Network Simultaneous access to data Data
White paper. Mobile broadband with HSPA and LTE capacity and cost aspects
White paper Mobile broadband with HSPA and LTE capacity and cost aspects Contents 3 Radio capacity of mobile broadband 7 The cost of mobile broadband capacity 10 Summary 11 Abbreviations The latest generation
Evolution and Applications
Introduction to LTE embms: Evolution and Applications Principal Company Office 22 Derby Street Collingwood Victoria 3066 AUSTRALIA P: +61 3 9419 8166 F: +61 3 9419 8666 W: www.windsor place.com NBTC/ITU
Mobile and Wireless ATM (WATM)
Mobile and Wireless ATM (WATM) Defense Information Systems Network (DISN) Syed Shah Larry Bowman Robert Riehl Defense Information Systems Agency Center for Systems Engineering Reston, VA20191 Abstract:
WWW.6GBUSINESS.COM. Give your business the competitive advantage
WWW.6GBUSINESS.COM Give your business the competitive advantage 6G Internet s Technology Superfast wireless broadband providing speeds from 10Mbps to 10Gbps* 6G internet s Air Fibre is a forward thinking
Dell NetReady Mobile Broadband Service User's Guide
Dell NetReady Mobile Broadband Service User's Guide Introduction Quick Start Service Coverage Frequently Asked Questions Glossary Information in this document is subject to change without notice. Introduction:
Beyond Broadband Access
Beyond Broadband Access Dr. Sanghoon Lee Executive Vice President Agenda Broadband Internet in Korea Beyond Broadband Services Features and Directions Summary & Remarks Broadband Internet Business in Korea
The Business Case for Service Provider Wi-Fi Addressing the tremendous growth in mobile data traffic in a scalable and cost effective manner
white paper The Business Case for The mobile industry is seeing rapid growth in data traffic. This started with the launch of the iphone back in 2007 and has continued unabated for the last 5 years. Most
Protocols. Packets. What's in an IP packet
Protocols Precise rules that govern communication between two parties TCP/IP: the basic Internet protocols IP: Internet Protocol (bottom level) all packets shipped from network to network as IP packets
V-DSL technology in the NBN
CommsDay Melbourne Congress 2013 V-DSL technology in the NBN Wednesday 9 th October 2013 Cliff Gibson Outline VDSL2 technologies which extend the capability of existing copper are expected to be included
WiMAX and the IEEE 802.16m Air Interface Standard - April 2010
WiMAX and the IEEE 802.16m Air Interface Standard - April 2010 Introduction The IEEE 802.16e-2005 amendment to the IEEE Std 802.16-2004 Air Interface Standard which added Scalable-Orthogonal Frequency
Wireless Networks. Reading: Sec5on 2.8. COS 461: Computer Networks Spring 2011. Mike Freedman
1 Wireless Networks Reading: Sec5on 2.8 COS 461: Computer Networks Spring 2011 Mike Freedman hep://www.cs.princeton.edu/courses/archive/spring11/cos461/ 2 Widespread Deployment Worldwide cellular subscribers
Home Agent placement and assignment in WLAN with Cellular Networks
Home Agent placement and assignment in WLAN with Cellular Networks Selvakumar.R, Senior Lecturer, Department of Computer Science and Engineering V.M.K.V.Engineering College, Salem-636 308 Tamilnadu, India.
Cellular Network Organization. Cellular Wireless Networks. Approaches to Cope with Increasing Capacity. Frequency Reuse
Cellular Network Organization Cellular Wireless Networks Use multiple low-power transmitters (100 W or less) Areas divided into cells Each served by its own antenna Served by base station consisting of
CARLETON UNIVERSITY Department of Systems and Computer Engineering. SYSC4700 Telecommunications Engineering Winter 2014. Term Exam 13 February 2014
CARLETON UNIVERSITY Department of Systems and Computer Engineering SYSC4700 Telecommunications Engineering Winter 2014 Term Exam 13 February 2014 Duration: 75 minutes Instructions: 1. Closed-book exam
Internet Public Network
Internet Public Network Bandwidth Data rate measured in bits (not bytes) per seconds Kbps (Kilobits per seconds) 125 chars/sec Mbps (Megabits per seconds) 1,250 chars/sec Gbps (Gigabits per seconds) 12,500
Integrated Telephone/Fax/Paging/Email Services over ATM/MAN-based Personal Communication Networks
Integrated Telephone/Fax/Paging/Email Services over ATM/MAN-based Personal Communication Networks Henry C B Chan and Victor C M Leung Department of Electrical and Computer Engineering The University of
wireless triple play network - www.air-tv.net
an innovative and integrated wireless network aimed at offering Triple Play services Introduction AIR is a wireless network that can be used to offer Triple Play economically, i.e. with a typical pay-back
Network Performance: Networks must be fast. What are the essential network performance metrics: bandwidth and latency
Network Performance: Networks must be fast What are the essential network performance metrics: bandwidth and latency Transmission media AS systems Input'signal'f(t) Has'bandwidth'B System'with'H(-) Output'signal'g(t)
Computer Network. Interconnected collection of autonomous computers that are able to exchange information
Introduction Computer Network. Interconnected collection of autonomous computers that are able to exchange information No master/slave relationship between the computers in the network Data Communications.
Wireless LAN Services for Hot-Spot
Wireless LAN Services for Hot-Spot Woo-Yong Choi Electronics and Telecommunications Research Institute wychoi53@etri.re.kr ETRI Contents Overview Wireless LAN Services Current IEEE 802.11 MAC Protocol
Building Wireless Networks. Tariq Hasan Regional Sales Manager, MENA Wireless Network Solutions Motorola Solutions
Building Wireless Networks Tariq Hasan Regional Sales Manager, MENA Wireless Network Solutions Motorola Solutions Agenda Evolution of WLAN Benefits of Distributed architecture Next Generation Verticals
Toolkit: Tutorial: Comparing Wireless Broadband Technologies for the Enterprise Campus
Gartner for IT Leaders Publication Date: 22 September 2006 ID Number: G00143195 Toolkit: Tutorial: Comparing Wireless Broadband Technologies for the Enterprise Campus Robin Simpson Since early 2005, colleges
Evolution of the Air Interface From 2G Through 4G and Beyond
Evolution of the Air Interface From 2G Through 4G and Beyond Presentation to IEEE Ottawa Section / Alliance of IEEE Consultants Network (AICN) - 2nd May 2012 Frank Rayal BLiNQ Networks/ Telesystem Innovations
Narrowband and Broadband Access Technologies
Computer Networks and Internets, 5e Chapters 12 and 16 Access and Interconnection Technologies (slidesets abridged/combined) By Douglas Comer Modified from the lecture slides of Lami Kaya (LKaya@ieee.org)
NXC5500/2500. Application Note. 802.11w Management Frame Protection. ZyXEL NXC Application Notes. Version 4.20 Edition 2, 02/2015
NXC5500/2500 Version 4.20 Edition 2, 02/2015 Application Note 802.11w Management Frame Protection Copyright 2015 ZyXEL Communications Corporation 802.11w Management Frame Protection Introduction IEEE 802.11w
TYPE OF INTERNET CONNECTIONS. Dialup Cable Connection DSL Broadband Dedicated Leased Line ISDN Wireless Connection
Internet Connections By Bhupendra Ratha, Lecturer School of Library and Information Science Devi Ahilya University, Indore Email: bhu261@gmail.com How to acquire Connection? We are Basically connected
Link Layer. 5.6 Hubs and switches 5.7 PPP 5.8 Link Virtualization: ATM and MPLS
Link Layer 5.1 Introduction and services 5.2 Error detection and correction 5.3Multiple access protocols 5.4 Link-Layer Addressing 5.5 Ethernet 5.6 Hubs and switches 5.7 PPP 5.8 Link Virtualization: and