Evaluation of Cover and Reflector in Receiver Antennas for SM-MIMO Wireless Communications
Evaluation of Cover and Reflector in Receiver Antennas for SM-MIMO Wireless Communications
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SM-MIMO 无线通信接收器天线的覆盖物和反射器评估
DOI：
10.1155/2013/123827
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Yoshikazu Miyanaga
中科院分区：
文献类型：
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作者：
Shingo Yoshizawa;Yoshikazu Miyanaga
空间复用多输入多输出（SM - MIMO）在提高通信吞吐量方面是有效的。然而，由于高空间相关性，在较差的多径和视距（LOS）信道中会出现性能下降。为了克服MIMO LOS信道中性能下降的问题，提出了对接收天线的覆盖和反射器进行评估的方法。我们测量了农田、沟槽、通道和角落环境下的包错误率（PER）、信噪比（SNR）、空间相关系数和接收功率比的特性。农田环境由于空间相关系数高，导致通信性能下降。根据测量结果，我们在接收天线中制作了覆盖物和反射器，以降低高空间相关性，并证实了通信性能的改善。
Spatial multiplexing multiple‐input multiple‐output (SM‐MIMO) is effective in increasing communication throughput. However, performance degradation occurs in poor multipath and line‐of‐sight (LOS) channels due to the high spatial correlation. This paper presents the evaluation of cover and reflector in receiver antennas to overcome the performance degradation in MIMO LOS channels. We measured the characteristics of packet error rate (PER), signal‐to‐noise ratio (SNR), spatial correlation coefficient, and received power ratio in farm, groove, passage, and corner environments. The farm environment degraded communication performance due to the high spatial correlation coefficient. Following the measurement results, we fabricated cover and reflector in receiver antennas to decrease the high spatial correlation and confirmed the improvement of communication performance.