Cooperative Transmission in a Wireless Relay Network Based on Flow Management

被引:3
作者
Chatterjee, Debdeep [1 ]
Wong, Tan F. [1 ]
Lok, Tat M. [2 ]
机构
[1] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA
[2] Chinese Univ Hong Kong, Dept Informat Engn, Shatin, Hong Kong, Peoples R China
基金
美国国家科学基金会;
关键词
Cooperative communication; wireless relay network; convex optimization; diversity-multiplexing tradeoff; DIVERSITY; TRADEOFF; PROTOCOLS; CAPACITY;
D O I
10.1109/TCOMM.2010.083110.080395
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
Cooperative transmission protocols using a flow optimization approach for a general multi-node half-duplex wireless relay network are presented. The proposed design involves solving a convex flow optimization problem on a graph that models the relay network. Two protocols are developed using the techniques of broadcasting (BC), multiple-access (MA), and time sharing (TS), and both are shown to achieve the optimal diversity-multiplexing tradeoff (DMT). Simulation results are used to quantify the performances of the proposed protocols in terms of outage probabilities, and to compare them against the max-flow-min-cut bound.
引用
收藏
页码:2816 / 2822
页数:7
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