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首页> 外文期刊>Wireless Communications Letters, IEEE >Orthogonality Structure Designs for Generalized Precoding Aided Spatial Modulation
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Orthogonality Structure Designs for Generalized Precoding Aided Spatial Modulation

机译:广义预编码辅助空间调制的正交结构设计

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摘要

In this letter, we propose an orthogonality structure design (OSD) for the generalized precoding aided spatial modulation (GPSM) to overcome the performance degradation caused by correlated fading channels. To improve the bit error rate (BER) performance of GPSM system, we devise an efficient receive antenna subset selection (RAS) technique relied on the mechanisms of maximizing the equivalent channel gain. To facilitate a better trade-off between performance and computational complexity, we study the peculiarities of the Hermitian matrix which provides an important insight for conceiving orthogonality conditions to the channel matrix of GPSM system. We prove that the performance gain in terms of BER can be attained with the aids of the proposed efficient RAS, and OSD-aided schemes with low-complexity. In particular, our results demonstrate that the OSD-aided scheme is capable of providing significant BER performance improvement for GPSM systems, compared to that of current strategies.
机译:在这封信中,我们为广义预编码辅助空间调制(GPSM)提出了正交结构设计(OSD),以克服相关衰落信道导致的性能下降。为了提高GPSM系统的误码率(BER)性能,我们设计了一种有效的接收天线子集选择(RAS)技术,该技术依赖于最大化等效信道增益的机制。为了促进性能和计算复杂度之间更好的权衡,我们研究了Hermitian矩阵的特性,这为构思与GPSM系统的信道矩阵正交的条件提供了重要的见识。我们证明,借助所提出的有效RAS和低复杂度的OSD辅助方案,可以实现BER方面的性能提升。特别是,我们的结果表明,与当前策略相比,OSD辅助方案能够为GPSM系统提供显着的BER性能改善。

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