Wideband Receive Spatial Modulation with Time Domain Pre-Equalizer for Large MIMO Systems

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI:10.1109/GLOCOMW.2018.8644106

Ahmed Raafat, A. Agustin, J. Vidal

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引用次数: 2

Abstract

Receive spatial modulation (RSM) schemes are promising for massive multiple-input-multiple-output (MIMO) systems at millimeter wave (mmWave) bands because they require reduced complexity and low consumption hardware at the user terminal and exploit the receive spatial dimension to attain high spectral efficiency. To the best of our knowledge, these schemes have been developed for narrowband transmission. In this paper, we adapt RSM schemes for outdoor wideband mmWave massive MIMO systems. We consider the downlink of a single user system operating with single carrier RSM and design a low complexity time-domain finite impulse response pre-equalizer to combat the intersymbol interference caused by the wideband transmission, assuming imperfect channel knowledge. We show that receive antenna selection (RAS) is necessary for attaining high spectral efficiency and we suggest fast and efficient RAS algorithm. Simulation results show that the proposed RSM scheme achieves comparable spectral efficiency to the fully digital orthogonal frequency division multiplexing MIMO system with superior energy efficiency.

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大型MIMO系统的带时域预均衡器的宽带接收空间调制

接收空间调制(RSM)方案在毫米波(mmWave)频段的大规模多输入多输出(MIMO)系统中具有较好的应用前景，因为它要求降低复杂性和用户终端硬件的低消耗，并利用接收空间维度来实现高频谱效率。据我们所知，这些方案都是为窄带传输而开发的。本文将RSM方案应用于室外宽带毫米波大规模MIMO系统。本文考虑了单载波RSM单用户系统的下行链路，在不完全信道知识条件下，设计了一种低复杂度时域有限脉冲响应预均衡器来对抗宽带传输引起的码间干扰。研究表明，接收天线选择是实现高频谱效率的必要条件，并提出了快速高效的接收天线选择算法。仿真结果表明，该方案的频谱效率可与全数字正交频分复用MIMO系统相媲美，且具有优越的能量效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE Globecom Workshops (GC Wkshps)

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