Efficient Power Allocation for Decentralized Distributed Space-Time Block Coding

被引：9
作者：
Zhang, Lu [1 ]
Cimini, Leonard J., Jr. [1 ]
机构：
[1] Univ Delaware, Newark, DE 19716 USA
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2009年 / 8卷 / 03期
关键词：
Cooperative diversity; decentralized distributed space-time block coding; power allocation; COOPERATIVE DIVERSITY;
D O I：
10.1109/TWC.2009.080153
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：
In this paper, we propose two ad-hoe, yet efficient, power allocation strategies for a decentralized distributed space-time block coding (Dis-STBC) system where knowledge about the channel state information (CSI) is not. available at the transmitter(s). The first is an open-loop strategy which requires no control signaling; the second is a feedback-assisted strategy which requires some control signaling, but which can achieve better power-efficiency. Focusing on a particular decentralized Dis-STBC scheme (m-group), the asymptotic outage probability is derived and the power-efficiency advantages of the proposed strategies over a uniform-power strategy are illustrated by evaluating the outage and link failure probabilities.
引用
收藏
页码：1102 / 1106
页数：5
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