Optimal power allocation for amplify-and-forward relay networks via conic programming

被引：22

作者：

Quek, Tony Q. S. ^{[1
]}

Win, Moe Z. ^{[1
]}

Shin, Hyundong ^{[2
]}

Chiani, Marco ^{[3
]}

机构：

[1] MIT, Lab Informat & Decis Syst, Cambridge, MA 02139 USA

[2] Kyung Hee Univ, Sch Elect & Informat, Seoul, South Korea

[3] Univ Bologna, IEIT BO, CNR, Bologna, Italy

来源：

2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14 | 2007年

关键词：

D O I：

10.1109/ICC.2007.835

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：

Relay power allocation has been shown to provide substantial performance gain in wireless relay channels when perfect global channel state information (CSI) is available. In this paper, we show that by using a class of conic optimization theory, we can solve the relay power allocation problem for amplify-and-forward (AF) relay networks in a straightforward manner. The problem formulation is such that the achievable rate with perfect global CSI is maximized under both the aggregate and individual relay power constraints for coherent and noncoherent AF relay networks. Numerical results quantify the performance gain using the optimal relay power allocation for both the coherent and noncoherent AF relay networks.

引用

页码：5058 / +

页数：2

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