1. Evolution of Wireless Data Communication

2. Market sectors in Wireless Applications Voice oriented market Evolved around wireless connections to PSTN a.Local Area market Low power, low mobility, high QoS., etc Eg: cordless telephone, PCS, wireless PBX b.Wide area market High power, comprehensive coverage, low QoS Eg: cellular and mobile telephone Data oriented market Evolved around Internet and computer communication network infrastructure. a.Broad band local Area and ad-hoc market Eg. WLAN,WPAN b.Wide area mobile market Internet access to mobile users. Eg: GPRS, EDGE

3. Broad band local Area and ad-hoc networks Wireless LAN 1.Wi-Fi - IEEE 802.11 based networks 2.Wireless ATM 3.HIPERLAN-ETSI based network Wireless PAN 1.Bluetooth- IEEE 802.15 2.HIPERPAN- ETSI based

4. Evolution of mobile networks Generation of Wireless networks 1 st generation - analog system eg: AMPS, TACS. 2 nd Generation - digital system eg: GSM, IS-95, IS-136. 2.5 Generation/Evolved 2 nd Generation 3 rd generation 3.5 generation/Evolved 3 rd Generation 4 th generation ?

5. Evolution of Mobile data networks 2.5G4G3G3.5G GPRSEDGEUMTS HSDPA CDMA 20001X CDMA 2000 EV DOCDMA 2000 EVDV 2G GSM IS 95

6. GPRS/EDGE FE GPRS modem BSC & PCU SGSN FE E1 Mobile/PDA BTS GGSN ISP & Internet

7. CDMA2000 1X/EVDO ISP & Internet FE USB modem BSC & PCF PDSN FE E1 FE Ethermax router P-card BTS

8. New Markets & Networks Evolved between Broad band local & ad-hoc and wide area mobile market WiMAX-IEEE 802.16 based HIPERMAN- ETSI based WiBro – South Korean initiative, could be considered as part of IEEE 802.16e Mo-Fi - IEEE 802.20 based still not standardized Wi-TV- IEEE 802.22 based still not standardized

9. Wi Max IP/MPLS PE FE Base Station Subscriber Station