Optimal Power Allocation for Decode-and-Forward Cooperative Diversity Under an Outage Performance Constraint

被引：24
|
作者：
Tsai, Yuh-Ren [1 ]
Lin, Li-Cheng [1 ]
机构：
[1] Natl Tsing Hua Univ, Inst Commun Engn, Hsinchu 30013, Taiwan
来源：
IEEE COMMUNICATIONS LETTERS | 2010年 / 14卷 / 10期
关键词：
Cooperative diversity; power allocation; decode-and-forward; outage probability; WIRELESS NETWORKS;
D O I：
10.1109/LCOMM.2010.091010.100361
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this work, we study the problem of optimal power allocation for decode-and-forward cooperative communications. From the perspective of service quality, rather than minimize the outage probability as much as possible, our goal is to use the minimum power to maintain the outage performance below a specific threshold and thereby conserve the power/energy resource. We investigate two scenarios, a system with diversity and a system without diversity, and propose efficient schemes for finding the optimal power allocation under an outage performance constraint.
引用
收藏
页码：945 / 947
页数：3
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