Low-Complexity MMSE Precoding for Coordinated Multipoint With Per-Antenna Power Constraint

被引：41

作者：

Kim, Tae Min ^{[1
]}

Sun, Fan ^{[2
]}

Paulraj, Arogyaswami J. ^{[1
]}

机构：

[1] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

[2] Aalborg Univ, Dept Elect Syst, Aalborg, Denmark

来源：

IEEE SIGNAL PROCESSING LETTERS | 2013年 / 20卷 / 04期

基金：

美国国家科学基金会;

关键词：

Coordinated beamforming; MMSE; nonlinear Gauss-Seidel algorithm; per-antenna power constraint; OPTIMIZATION;

D O I：

10.1109/LSP.2013.2246152

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a low-complexity minimum mean square error (MMSE) transmit filter design for the coordinated beamforming (CB) in the coordinated multipoint (CoMP) under the practical per-antenna power constraint (PAPC). The proposed design is based on the nonlinear Gauss-Seidel type algorithm in which the transmit filters for given receive filters are computed by iteratively updating the beamformer of each transmit antenna using simple closed-form expressions. The proposed approach can significantly reduce the overall complexity of the alternating optimization while preserving the optimality in the MSE sense.

引用

页码：395 / 398

页数：4

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