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大规模天线系统中MRC解码法的性能分析
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（完整内容请下载后查看）Hans Journal of Wireless Communication
Performance Analysis of the MRC Decoder
for a Massive MIMO System
Haiquan Wang, Pengyun Wu, Yuyu Jin, Lei Shen
Schoons Engineering, Hangzhou Dianzi University, Hangzhou
Email:
Received: Oct. 23rd, 2014; revised: Nov. 17th, 2014; accepted: Nov. 26th, 2014
Copyright © 2014 by authors and Hans Publishers Inc.
ons Attribution International License (CC BY).
Abstract
Based on a massive multiple-input, multiple-output (MIMO) uplink system, the pair-wise error
probability (PEP) of the maximal ratio combining (MRC) decoder on the receiver is analyzed. The
channel is assumed to be slow flat fading, and the base station (BS) knows the instant channel
state information. Firstly, the MRC decoder is defined for the system. Secondly, a formula calculat-
ing the PEP of the system with the decoder is derived. Thirdly, asymptotic analyses of the PEP
based on two different situations are given. These analyses reveal facts: 1) The PEP cannot go to
zero even when signal-to-noise (SNR) goes to infinity; 2) The PEP goes to zero when the number of
antennas at BS is increased to infinity and SNR is fixed. Finally, power scale law on PEP is dis-
cussed. Numerical simulations firm the above conclusions.
Keywords
Massive MIMO, Maximal Ratio Combining, Pair-Wise Error Probability, Slow Flat Fading, Channel
State Information
大规模天线系统中MRC解码法的性能分析
王海泉，吴鹏云，金瑜瑜，沈
雷
工程学院，杭州
Email:
收稿日期：2014年10月23日；修回日期：2014年11月17日；录用日期：2014年11月26日
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