Wireless Internet

Course in Computer Science (Informatik) and Computer

Engineering (Ingenieurinformatik)

6./8. Semester, 2+2 SWS (Lecture and Project Seminar)

Andreas Mitschele-Thiel

Fachgebiet Integrierte Hard-und Softwaresysteme

TECHNISCHE UNIVERSITÄTILMENAU

Inte

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Course Description

The Internet and mobile communication are experiencing an enormous growth. Traditionally, each of the two area is using it’s own protocol architecture and protocols:

in the Internet, protocols are developed by the Internet community and standardized by the Internet Engineering Task Force (IETF), in the mobile communication area protocols are developed by Telecommunication companies and standardized by the Telecommunication Standardization Organisations (ITU-T, ETSI, etc.).

With the support of Internet traffic with mobile communication systems and the introduction of wireless LANs, the traditional separation between the Internet community and the Telecommunication area has begun to consolidate. The development of the Wireless Internet is prompting a merger and an integration of the two areas. There are currently two approaches:

extending Internet protocols to support mobility, and supporting packet data traffic within mobile communication systems provided by Telecommunication operators.

The course is focusing on the basic issues that are encountered with mobile data communication. In addition to the analysis of basic mechanisms, we will study how these mechanisms are employed in different mobile communication systems.

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Contents and Schedule of Course

Basics(1) Introduction

Basic problems and issues

(2) Wireless transmission

(3) Media access mechanisms

(4) Mobility management

(5) Review TCP/IP suite

(6) Wireless transport (TCP)

(7) Quality of Service

(8) Security & privacy

Systems

(9) 802.11

(10) WLAN Security

(11) GSM

(12) UMTS Hardware

(13) Router and switches

(14) Network processors

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Project Seminar

Contents:Practical studies in Wireless Internet LabSimulation studiesLiterature studies

Organisational Issues

Apply your knowledge to the study of real systemsDemonstration and/or oral presentation in class on selected topic Team work

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Fachgebiet IHS – Teaching

Vertiefung IHSSG II

StudiengangIngenieurinformatik (II)

StudiengangInformatik (IN)

ExportMedient. & W-Inf.

Integr. HW/SW-Systeme2/1/.5 (Pflicht für Inginf.

Wahl für Inf.)

1. Sem.

2. Sem.

5. Sem.

6.-9. Sem.

Multimediale Syst.2/1/- (Wahlpflicht)

VertiefungMedieninformatik

SG II/IN

IHS 2 (E+V)2/2/- (Wahlpflicht)

Wireless Internet2/2/- (Wahlpflicht)

UMTS Networks2/2/- (Wahlpflicht) Vertiefung IHS

SG IN

Rechnerorganisation2/2/.5

Techn. Informatik I2/2/.5 (bisher 1/1/.5)

Praktikum

Rechnerorg.1+1

Praktikum

Schaltsysteme1/1/.5

Praktikum

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Organisational Stuff

Course prerequisites:Basics of IP-based communication systems (e.g. Rechnernetze)Basics of Telecommunication systems (e.g. Telematik)

Slides and additional information will be provided at http://www.tu-ilmenau.de/ihs

Please provide your email address for short term notices

Instructor contact:Andreas Mitschele-ThielOffice: Blechhaus, Room 205Email: mitsch@tu-ilmenau.dePhone: 03677-69-2819

Course budget: 2+228 hours lectures 28 hours project seminar

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Introduction

Wireless BusinessConvergence of Mobile Telecommunication and InternetMarket ExpectationsTechnical TrendsFrom 2G to 5G

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State of the Wireless Data Business

Telecommunication2G Mobile Communication Systems are in place (GSM/HSCSD and GPRS)

3G Mobile Systems (UMTS) are being deployed

Wireless voice market is saturating

Traditional Telecom Operator and infrastructure provider target the Internet market

InternetFixed Internet access is getting common (DSL)

WLAN hot spots are installed at airports, campus areas, coffee shops, etc.

802.11a products are available

802.16 products are available

802.20 standards are under development

Internet Service Providers (ISP) and Internet infrastructure provider target the mobile market

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Convergence of Mobile Communication and the InternetM

illio

ns

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005

1,400

1,200

1,000

800

600

400

200

0

2004: Internet access via mobile terminals will overtake Internet access via PCs

2004: Internet access via mobile terminals will overtake Internet access via PCs

2002: 500 million mobiles with Internet access2002: 500 million mobiles with Internet access

PCs with Internet access

Mobile communication

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Market Expectations and Trends

Trends (Source: UMTS Forum, 2000)60% increase per year for wire-based multi-media services500M wireline Internet user in 2005increasing demand for information and entertainment `while on the move´

Some Market projections (Source: UMTS Forum, 2000)

2000 2005 2010User of mobile terrestrical services worldwide 426 940 >1700 MUser in Western Europe 113 200 260 M Multi-media user 32 90 M

Market in the EU (in Euro) 104 Mrd. Multi-media user 24 Mrd.

User of satellite-based services 11,5 18,5 M

Central hypothesis: increase of multi-media services and added-value servicesVirtual Home Environment (VHE)

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Technical Perspectives: Radio Access Technologies

0,01

0,1

1

10

100

1000

1996 1998 2000 2002 2004 2006 2008 2010product date

Max

dat

a ra

te (M

bps)

Local Area WLAN Wide Area Cellular Personal Area Networks

802.11

HIPERLAN/1 802.11b

HIPERLAN/2 802.11a

Application space

Video data rate

HSCSD

GPRS

EDGE

UMTS

VoiceVoice

Text MessagingText Messaging

Still ImagingStill Imaging

Audio StreamingAudio Streaming

Video StreamingVideo Streaming

Ubiquitous TVInfotainment

Virtual Homes

High Speed Internet

PAN/LAN Convergence

Bluetooth

HomeRF

2.4GHz

5GHz

60GHz

802.16

HSDPA

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2nd Generation Mobile Communication Systems: GSM

Global System for Mobile communication (GSM)

Digital Wireless Communication System

ETSI Standard (European Telecommunication Standardization Institute)

In operation since 1991/92

Worldwide over 1.5 billion subscribers in over 200 countries

Market share of over ¾ of wireless market

In Germany: GSM900 (D1 and D2, 2x25MHz) and DCS1800 (E-plus and E2,

2x75MHz)

Services: primarily voice, some data services

Transport: mainly connection-oriented

Source: www.gsmworld.com (2005)

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3G Mobile Communication Systems: UMTS

New standard for mobile communication

Multi media

Ubiquitous communicationalways on IP

Virtual home environment

Data communication

Programm zur Sanierung

des Bundeshaushaltes

expensive hot air

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Public WLAN Systems

Privat/corporate WLAN is getting commonPublic WLANs are under deploymentCommunity WLANs under deployment

...

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4G Mobile Communication Systems: Integration

WirelessWirelessIPIP

SocietySocietyS-UMTS

SatelliteBroadband

DVB-SDVB-T

DAB

GSMGPRS/EDGE

DECTIR

BroadbandW-LAN

UMTS

Satellite/HAPS

Broadcasting

Cellular

Indoor

MBS 40 xMDS

Broadband WFA

Wireless Local Loop

Body LANs

PersonalArea Networks

UMTS ++

4th Generation

Local Area NetworksMBS 60 MWS

Bluetooth

Quasi-Cellular

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5G: Interplanetary Internet

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Summary of the Evolution Path

2G (GSM): global digital personal communication systemFDMA, TDMA, FDDcircuit-switched voice (voice service)SMSglobal roaming

2+G (GSM+GPRS): introduction of packet-switched data

IP to the terminalmultiplexing of packet-switched data on traffic channels of radio linkIP tunneling in the packet-switched core networkSS7 signaling, AAA, mobility management (GSM approach)QoS: best effort

3G (UMTS): packet-switched data and services

4G: Integration of various radio technologies (satellite, broadcast, cellular, WLAN, BAN)

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Summary of the Evolution Path (cont’d)

2G (GSM): global digital personal communication system

2+G (GSM+GPRS): introduction of packet-switched data

3G (UMTS): packet-switched data and servicesCDMA-FDD/TDDpredominantly data communicationfocus on services and contentall IP transport (3GPP R4): mobile, radio access network, core networkSS7 signaling, AAA, mobility management, etc.QoS: more effortseamless services (global handover)

4G: Integration of various radio technologies (satellite, broadcast, cellular, WLAN, BAN)use of the ‘optimal’ radio link (w.r.t. delay, throughput, error rate) IETF protocols for everything (all IP for transport and control)

5G: Solve problems we don’t even know today