Low-Complexity Improved-Rate Generalised Spatial Modulation: Bit-to-Symbol Mapping, Detection and Performance Analysis
Low-Complexity Improved-Rate Generalised Spatial Modulation: Bit-to-Symbol Mapping, Detection and Performance Analysis
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DOI：
10.1109/tvt.2021.3129843
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发表时间：
2022-01
影响因子：
6.8
通讯作者：
Jiancheng An;Chao Xu;Yusha Liu;Lu Gan;L. Hanzo
中科院分区：
文献类型：
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作者：
Jiancheng An;Chao Xu;Yusha Liu;Lu Gan;L. Hanzo
针对可变N a GSM系统中映射簿设计和解调的高复杂度，提出了低复杂度的改进速率广义空间调制（LCIR-GSM）。具体来说，首先，我们提出了两个有效的计划，用于映射的信息位的发射天线激活模式，这可以很容易地扩展到大规模的MIMO设置。其次，我们推导出一对低复杂度的近最优检测器，其中一个具有减少的搜索范围，而另一个受益于解耦的基于单流的信号检测算法。最后，所提出的LCIR-GSM系统的性能的特点是改进的错误概率上界。我们的仿真结果证实了改进的错误性能，我们提出的方案，尽管其降低了信号检测的复杂性。
Low-complexity improved-rate generalised spatial modulation (LCIR-GSM) is proposed to mitigate the high complexity of the mapping book design and demodulation of variable-${N_a}$ GSM. Specifically, first of all, we propose two efficient schemes for mapping the information bits to the transmit antenna activation patterns, which can be readily scaled to massive MIMO setups. Secondly, we derive a pair of low-complexity near-optimal detectors, one of which has a reduced search scope, while the other benefits from a decoupled single-stream based signal detection algorithm. Finally, the performance of the proposed LCIR-GSM system is characterised by the improved error probability upper bound. Our simulation results confirm the improved error performance of our proposed scheme, despite its reduced signal detection complexity.