Constant-Envelope Multi-User Precoding for Frequency-Selective Massive MIMO Systems

被引：73

作者：

Mohammed, Saif Khan ^{[1
,2
]}

Larsson, Erik G. ^{[3
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Delhi, India

[2] Linkoping Univ, Dept Elect Engn ISY, S-58183 Linkoping, Sweden

[3] Linkoping Univ, Dept Elect Engn ISY, Commun Syst Div, S-58183 Linkoping, Sweden

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2013年 / 2卷 / 05期

关键词：

Massive MIMO; per-antenna constant-envelope;

D O I：

10.1109/WCL.2013.071713.130328

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 consider downlink precoding in a frequency-selective multi-user Massive MIMO system with highly efficient but non-linear power amplifiers at the base station (BS). A low-complexity precoding algorithm is proposed, which generates constant-envelope (CE) signals at each BS antenna. To achieve a desired per-user information rate, the extra total transmit power required under the per-antenna CE constraint when compared to the commonly used less stringent total average transmit power constraint, is small.

引用

页码：547 / 550

页数：4

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IEEE SIGNAL PROCESSING MAGAZINE, 2013, 30 (01) :40-60

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