Mobile Communications I - IHP Microelectronics

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Areas of research in mobile communicationWireless Communication Architectures transmission quality (bandwidth, error rate, delay) modulation, coding, interference media access, regulations ...Mobility location dependent services location transparency quality of service support (delay, jitter, security) ...Portability energy efficiency limited computing power, sizes of display, ... usability ...Dr.-Ing. Jean-Pierre Ebert MC-I SS07 1.28
Wireless Internet ChallengesAttribute Now Needed ChallengesBandwidth 9.6 Kb/s 20-50 Mb/s 1000x140Kb/s GPRS 1Gb/s planned 10000Processing 100 MIPS 10,000 MIPS 100xPower 1 mW/MIPS 0.01 mW/MIPS 100xconsumptionNo. of chips 10-50 1 Not possible at presentForm factor Brick Single chip Internal comms., PowerDistributed distr., PackageSoftware Win Ce, PalmOS Java/Jini HW independent SWServices VOICE+ data TRANSACTIONS +DATA + voiceIntegrated, seamless,secureFeatures Undifferentiated Location, Context Need platformEnvironment awareCost $299 $99 Margin too low forservice pricingDr.-Ing. Jean-Pierre Ebert MC-I SS07 1.29
Page 3 and 4: Administrative Issues Lecture dates
Page 5 and 6: Chapter 1:Introduction A case for m
Page 7 and 8: Mobile communicationTwo aspects of
Page 9 and 10: Mobile and wireless services - Alwa
Page 11 and 12: Location dependent servicesLocation
Page 13 and 14: Effects of device portabilityPower
Page 15 and 16: Early history of wireless communica
Page 17 and 18: History of wireless communication I
Page 19 and 20: History of wireless communication I
Page 21 and 22: Wireless systems: Overview of the d
Page 23 and 24: Worldwide wireless subscribers (old
Page 25 and 26: Worldwide cellular subscriber growt
Page 27: Mobile statistics snapshot (09/2002
Page 31 and 32: Influence of mobile communication t

Mobile Communications I - IHP Microelectronics

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