文章基本信息

标题：Low-Complexity Detection Scheme for Generalized Spatial Modulation
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作者：Yang Jiang ; Yang Jiang ; Yingjie Xu 等
期刊名称：Journal of Communications
印刷版ISSN：1796-2021
出版年度：2016
卷号：11
期号：8
页码：726-732
DOI：10.12720/jcm.11.8.726-732
语种：English
出版社：ACADEMY PUBLISHER
摘要：Generalized spatial modulation was recently proposed, in which only part of the transmit antennas are activated to send the same complex symbol. Compared to Spatial Modulation (SM), it can offer spatial diversity. Moreover, it is no longer limited to the number of the transmit antennas. In this letter, a low complexity detection scheme is presented, which can achieve a near Maximum-Likelihood (ML) performance and reduce the complexity compared to ML. In the proposed algorithm, the antenna index is ordered first based on the Hermitian angle between the received vector y and the combined channel vector h, . With the antenna index list, the constellation symbol can be estimated by calculating the difference between the normalized projection of received symbol in the direction of combined channel and the actual transmitted symbols. We can make a tradeoff between the performance and the complexity by changing the number of the candidate transmit antennas. The simulation results show that the proposed algorithm can achieve a near-ML performance with lower complexity.
关键词：Generalized spatial modulation;low complexity;maximum likelihood;multiple-input-multiple-output