Combining space-time block coding with diversity antenna selection for improved downlink performance

被引：0
|
作者：
Katz, M [1 ]
Tiirola, E [1 ]
Ylitalo, J [1 ]
机构：
[1] Univ Oulu, Ctr Wireless Commun, FIN-90014 Oulu, Finland
来源：
IEEE 54TH VEHICULAR TECHNOLOGY CONFERENCE, VTC FALL 2001, VOLS 1-4, PROCEEDINGS | 2001年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A closed-loop method combining N-out-of-M antenna selection and space-time block coding from the selected antennas is proposed and studied in this paper. Performance is evaluated for WCDMA parameters in both frequency nonselective Rayleigh fading channels and in frequency selective (Vehicular A) channels. Operation In intra- and inter-cell dominant interference scenarios is considered. Numerical results show that the additional antenna selection procedure brings a supplementary uncoded BER performance improvement in the range of approximately 2-3.5 dB for flat-fading channels and 0.8-1.5 dB for frequency selective channels (@BER = 12%). A suboptimum selection scheme requiring only a single bit for antenna selection is also presented. In addition, the impact on performance of errors In the feedback channel is investigated in this paper.
引用
收藏
页码：178 / 182
页数：5
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