Distributed downlink beamforming in cellular networks

被引：9

作者：

Ng, Boon Loong ^{[1
]}

Evans, Jamie ^{[1
]}

Hanly, Stephen ^{[1
]}

机构：

[1] Univ Melbourne, Dept Elect & Elect Engn, ARC Special Res Ctr Ultrabroadband Informat Netwo, Melbourne, Vic 3010, Australia

来源：

2007 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS, VOLS 1-7 | 2007年

关键词：

D O I：

10.1109/ISIT.2007.4557195

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 consider a cellular network where base stations can cooperate to determine the signals to be transmitted on the downlink. Using a particular downlink beamformer structure, we recast our downlink beamforming problem as a virtual linear minimum mean square error (LMMSE) estimation problem. Based on this virtual set up, we remodel the network as a factor graph with loops and present a simple distributed cooperative scheme for base stations based on the sum-product algorithm. We study the condition for convergence for the distributed algorithm and demonstrate its performance via simulations.

引用

页码：6 / 10

页数：5

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