Cell-free Massive MIMO with multi-antenna access points and user terminals

被引：7

作者：

Burr, Alister ^{[1
]}

Islam, Shammi ^{[1
]}

Zhao, Junbo ^{[1
]}

Bashar, Manijeh ^{[2
]}

机构：

[1] Univ York, Dept Elect Engn, York, N Yorkshire, England

[2] Univ Surrey, Inst Commun Syst, Fac Engn & Phys Sci, Guildford, Surrey, England

来源：

2020 54TH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS | 2020年

基金：

英国工程与自然科学研究理事会;

关键词：

cell-free" massive MIMO; sparse channels; millimeter-waves; singular value decomposition; zero forcing; WIRELESS;

D O I：

10.1109/IEEECONF51394.2020.9443558

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The objective of the paper is to discuss the optimization of "cell-free" massive MIMO (CF-MaMIMO), in which antennas are distributed among access points (APs) throughout the service area, specifically for the case of multiple antennas at user terminals (UTs). We also focus on millimeter-wave (mmW) systems, where the array gain is important in compensating for the large free space path loss and channels are likely to be relatively sparse. We discuss the importance of channel state information (CSI) at the UTs, and propose an approach using SVD-based precoding with zero-forcing to eliminate inter-user interference. We show that in the case of perfect CSI this approach can asymptotically achieve the single user bound on capacity.

引用

页码：821 / 825

页数：5

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