Downlink transmit diversity schemes for CDMA networks

被引：3
|
作者：
Thompson, JS [1 ]
Grant, PM [1 ]
Mulgrew, B [1 ]
机构：
[1] Univ Edinburgh, Dept Elect & Elect Engn, Signals & Syst Grp, Edinburgh EH9 3JL, Midlothian, Scotland
来源：
IEE PROCEEDINGS-COMMUNICATIONS | 2000年 / 147卷 / 06期
关键词：
D O I：
10.1049/ip-com:20000689
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Transmit diversity schemes that have been proposed for the downlink in CDMA networks are discussed. They provide diversity gain against Rayleigh fading at the mobile which can significantly improve performance. Theoretical error formulas for convolutional codes are shown to be useful in optimising the performance of some of these techniques. Performance results from a number of simulation studies are also presented. These can be used to determine the strengths and weaknesses of the algorithms and their effect on a typical CDMA network. The effects of Rician fading and fast downlink power control on transmit diversity are discussed.
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页码：371 / 380
页数：10
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