1. CELLULAR COMMUNICATIONS WiMax

2. What is WiMax?

3. Fixed WiMax

4. Mobile WiMax

5. WiMax is Not WiFi

6. WiMax Indoor CPE

7. P2P and PMP

8. LOS and NLOS

9. Antennas and Radios

10. Adaptive Antenna Systems

11. QoS

13. Fixed Wireless Applications

14. Alternatives

15. Low Barrier To Entry

16. 16 Wireless Standards  4 main usage segments are specified  Range, Power, …

17. NDSLab Copyright@2008 17 WiMAX on the Path of Fixed/Mobile Convergence Fixed Mobile Will Convergence Wi-FiWCDMA802.16 (WiMAX) Spectrum 2.4G, 5.8GHz (Unlicensed) Around 2GHz (Licensed) 2~11, 10~66 GHz (Licensed, Unlicensed) Channel AccessContention-basedScheduled Bit RateUp to 54MbpsUp to 2MbpsUp to 75 Mbps MobilityFixed, PortableMobileFixed, Portable, Mobile Modulation Scheme CDMA, OFDMCDMAOFDM, OFDMA Typical Communication Range 100s meters10s kilo-meters

18. Comparison

19. 19 Deployment of WiMAX Service Source: WiMAX Forum/Siemens  Backhaul Feeding  Point-to-point link for fixed infrastructure  Fixed Wireless Access  Wireless local loop for hot-spot feeding  Nomadic Access  CPEs in hot-zone access the service directly  Portable/Mobile Access  Handover function enabling mobile data feeding

20. Mobile Performance Today 802.16m leads in performance. 802.16e leads in performance and availability TechnologyRequired Spectrum Standards Completion (Expected) Peak Throughput (Mbps) Avg. Spectral Efficiency (bits/sec/Hz/Sector) Sleep to Active Latency DLULDLUL 802.16e/Mobile WiMAX Release 1.0 2x2 MIMO TDD 10 MHz (5:3) Dec. 200540171.40.7< 40 ms HSPA (Release 6) FDD 2x5 MHzMar. 20051460.50.3250 ms HSPA+ (Release 8) 2x2 MIMO FDD 2x5 MHzDec. 200842120.80.550 ms LTE (Release 8) 2x2 MIMO FDD 2x10 MHzMar. 200986381.60.810 ms LTE (Release 10) 4x4 MIMO FDD 2x10 MHz(Q1 2011)160802.42.1<10ms 802.16m 4x4 MIMO TDD 20 MHz (5:3) (Q3, 2010)170902.92.5<10 ms