将空时分组编码与分集天线选择相结合，提高下行链路性能

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.956581

M. Katz, E. Tiirola, J. Ylitalo

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引用次数: 40

摘要

本文提出并研究了一种结合n -out- m天线选择和对所选天线进行空时分组编码的闭环方法。对WCDMA参数在频率非选择性瑞利衰落信道和频率选择性(车辆A)信道中的性能进行了评估。考虑了在小区内和小区间优势干扰情况下的操作。数值结果表明，额外的天线选择程序可使无编码误码率性能在平衰落信道中提高约2-3.5 dB，在频率选择信道(@BER=12%)中提高约0.8-1.5 dB。提出了一种只需要单比特的次优选择方案。此外，本文还研究了反馈通道中误差对性能的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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.

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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

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