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Fast Receive Antenna Subset Selection for Pre-Coding Aided Spatial Modulation

机译:用于预编码辅助空间调制的快速接收天线子集选择

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摘要

In the literature, the pre-coding aided spatial modulation (PSM) is designed only for the symmetric and the underdetermined multiple-input multiple-output (MIMO) systems. In this letter, we study the PSM in the over-determined MIMO system where the receive antenna subset (RAS) selection is considered. The optimal selection criterion is first given, and a fast greedy incremental algorithm is then proposed. The proposed algorithm constructs the RAS by adding antennas one by one, where the low-complexity recursive computation of the matrix inverse can be further employed. Simulation results show that the proposed fast algorithm can achieve most of the antenna selection gain with very low complexity.
机译:在文献中,预编码辅助空间调制(PSM)仅设计用于对称系统和不确定的多输入多输出(MIMO)系统。在这封信中,我们研究了考虑接收天线子集(RAS)选择的超定MIMO系统中的PSM。首先给出最佳选择准则,然后提出一种快速贪婪增量算法。所提出的算法通过逐个添加天线来构造RAS,其中矩阵逆的低复杂度递归计算可以进一步应用。仿真结果表明,所提出的快速算法能够以非常低的复杂度实现大部分天线选择增益。

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