Uplink Spectral Efficiency Analysis of Distributed Massive MIMO With Channel Impairments

被引：32

作者：

Li, Jiamin ^{[1
]}

Wang, Dongming ^{[1
]}

Zhu, Pengcheng ^{[1
]}

You, Xiaohu ^{[1
]}

机构：

[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China

来源：

IEEE ACCESS | 2017年 / 5卷

基金：

中国国家自然科学基金;

关键词：

Distributed massive MIMO; channel aging; pilot contamination; Doppler shift; phase noise; LARGE-SCALE MIMO; INTERCELL INTERFERENCE; NETWORK MIMO; PHASE NOISE; WIRELESS; SYSTEMS;

D O I：

10.1109/ACCESS.2017.2694010

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, considering the practical channel impairments known as pilot contamination and channel aging induced by both Doppler shift and phase noise, we analyze the uplink spectral efficiency of multi-cell multi-user distributed massive multi-input multi-output (MIMO) systems with linear receivers. A joint channel model is first provided, which allows studying the impacts of these impairments on the achievable rate performance of distributed massive MIMO systems simultaneously. Based on this model, using the properties of Gamma distributions together with the approximate methods for non-isotropic vectors, we derive tractable but accurate closed-form expressions for the uplink achievable rate with maximum ratio combining (MRC) and zero-forcing (ZF) receivers in distributed massive MIMO systems. User ultimate achievable rate is also given when the ratio of total number of transmit antennas to the number of users is very large. It is shown that MRC and ZF receivers achieve the same ultimate achievable rate in the presence of the practical channel impairments. Numerical results show that channel aging has a greater impact on ZF receiver and the impact of the Doppler shift is more detrimental than that of the phase noise.

引用

页码：5020 / 5030

页数：11

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