相关信道下广义空间调制系统的天线选择

针对广义空间调制系统在相关衰落信道下误码率和容量性能严重恶化的问题,提出一种基于距离和范数测度的天线选择方案。该方案中,通过联合考虑信道列空间的距离测度和信道功率增益范数测度,设计了低复杂度的天线选择算法,即从候选发送天线集合中逐个丢弃性能较差的天线,最终获得一个次优的候选天线集合,从而同时改善该系统在空间星座和信号星座部分的误码率和容量性能。仿真表明,该方案能够在复杂度没有明显增加的条件下大大改善系统性能,而且在独立衰落信道下依然能够保持良好性能,展现出其较好的灵活性和可扩展性。...

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Bibliographic Details
Published in实验室研究与探索 Vol. 35; no. 6; pp. 106 - 111
Main Author 吕海洋 岳静
Format Journal Article
LanguageChinese
Published 中国电子科技集团公司第二十八研究所第一研究部,江苏南京,210006%航天晨光股份有限公司研究院,江苏南京,211100 2016
Subjects
天线选择
广义空间调制
相关信道
距离测度
天线选择
correlation channel
广义空间调制
antenna selection
距离测度
distance measure
相关信道
generalized spatial modulation
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ISSN1006-7167

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Summary:针对广义空间调制系统在相关衰落信道下误码率和容量性能严重恶化的问题,提出一种基于距离和范数测度的天线选择方案。该方案中,通过联合考虑信道列空间的距离测度和信道功率增益范数测度,设计了低复杂度的天线选择算法,即从候选发送天线集合中逐个丢弃性能较差的天线,最终获得一个次优的候选天线集合,从而同时改善该系统在空间星座和信号星座部分的误码率和容量性能。仿真表明,该方案能够在复杂度没有明显增加的条件下大大改善系统性能,而且在独立衰落信道下依然能够保持良好性能,展现出其较好的灵活性和可扩展性。
Bibliography:In view of the serious deterioration caused by error rate and capacity performance of generalized spatial modulation systems in correlated fading channels,an antenna selection scheme based on distance and norm measure is proposed. In this scheme,we design a low complexity antenna selection algorithm based on the greedy idea which depends on the idea of the combination of the distance measure and the channel power gain norm. Simulations show that our scheme can greatly improve the system performance and the complexity has no obvious increase. The system can maintain good performance under the condition of independent fading channel,and the property shows its good flexibility and scalability.
generalized spatial modulation; antenna selection; distance measure; correlation channel
31-1707/T
LU Hai-yang, YUE Jing （ 1. First Research Department, Twenty-eighth Institute, China Electronic Nanjing 210006, China; 2. Aerosun Corporation Research Institute, Technology Group Corporation, Nanjing 211100, China）
ISSN:1006-7167