Mobile Wimax ---PART II

sigma242

【文件名】:06817@52RD_Mobile WiMAX - Part II A Comparative Analysis.pdf
【格　式】:pdf
【大　小】:280K
【简　介】:
【目　录】:Mobile WiMAX: A Comparative Analysis ...................................................................... 12
1. Introduction................................................................................................................... 12
2. Evolution of 3G Systems .............................................................................................. 14
2.1 Brief Overview of 1xEVDO ................................................................................... 14
2.2 Brief Overview of HSDPA/HSUPA....................................................................... 19
2.3 Roadmap for 3G Enhancements ............................................................................. 25
3. Comparing Mobile WiMAX to 1xEVDO and HSPA................................................... 26
3.1 Common Features ................................................................................................... 28
3.1.1 Adaptive Modulation and Coding (AMC)....................................................... 28
3.1.2 Hybrid ARQ..................................................................................................... 29
3.1.3 Fast Scheduling................................................................................................ 30
3.1.4 Bandwidth Efficient Handoff........................................................................... 30
3.2 Key Advantages of Mobile WiMAX...................................................................... 30
3.2.1 Tolerance to Multipath and Self-Interference.................................................. 31
3.2.2 Scalable Channel Bandwidth ........................................................................... 31
3.2.3 Orthogonal Uplink Multiple Access ................................................................ 32
3.2.4 Support for Spectral-Efficient TDD................................................................. 32
3.2.5 Frequency Selective Scheduling ...................................................................... 33
3.2.6 Fractional Frequency Reuse............................................................................. 34
3.2.7 Quality of Service ............................................................................................ 35
3.2.8 Advanced Antenna Technology....................................................................... 36
4. WiMAX-EVDO-HSPA Performance Comparison ...................................................... 37
5. Conclusion .................................................................................................................... 44
References........................................................................................................................ 46

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