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【文件名】:06822@52RD_whitepaper2[1].rar
【格 式】:rar
【大 小】:96K
【简 介】:Broadband wireless access technologies, offering bit rates of tens of megabits per second or more to residential and business subscribers, are attractive and economical alternatives to broadband wired access
technologies. Air interface standards for such broadband wireless MAN (metropolitan area networks) systems in licensed and unlicensed bands below 11 GHz are being developed by the IEEE 802.16 working group and also by the ETSI BRAN HiperMAN group. Such systems may operate over NLOS (non-line of sight) links, serving residential and SOHO (small office/home office) subscribers. In such environments multipath can be severe. This raises the question of what types of anti- multipath measures are necessary, and consistent with low cost solutions. Several variations of OFDM (Orthogonal
Frequency Division Multiplexing) have been proposed as effective anti- multipath techniques, primarily because of the favourable tradeoff they offer between performance in severe multipath and signal processing complexity [Cim85], [McD96] [Sar93].
【目 录】:
1. Introduction
2. Multipath Channel Characteristics
3. Anti-Multipath Approaches
4. Coexistence of Single Carrier and OFDM Systems
5. Mathematical Description of Frequency-Domain DFE (FD-DFE)
6. Equalizer Training Using Least Squares Minimization
7. Performance
8. Summary
9. References
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