Modified Conjugate Beamforming for Cell-Free Massive MIMO

被引：73

作者：

Attarifar, Masoud ^{[1
]}

Abbasfar, Aliazam ^{[1
]}

Lozano, Angel ^{[2
]}

机构：

[1] Univ Tehran, Sch Elect & Comp Engn, Tehran, Iran

[2] Univ Pompeu Fabra, Dept Informat & Commun Technol, Barcelona 08002, Spain

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2019年 / 8卷 / 02期

基金：

欧洲研究理事会;

关键词：

Cell-free networks; massive MIMO; conjugate beamforming; power allocation;

D O I：

10.1109/LWC.2018.2890470

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We present a modification of conjugate beamforming for the forward link of cell-free massive MIMO networks. This modification eliminates the self-interference and yields a performance that, without forward pilots, closely approaches what would be achieved with such pilots in place. The simplicity of conjugate beamforming is preserved, with no need for matrix inversions, at the expense of fading-rate coordination among the access points.

引用

页码：616 / 619

页数：4

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