Distributed beamforming and power allocation for cooperative networks

被引：78
|
作者：
Ding, Zhiguo [1 ]
Chin, Woon Hau [2 ]
Leung, Kin K. [3 ]
机构：
[1] Univ Lancaster, Dept Commun Syst, Lancaster LA1 4WA, England
[2] Inst Infocomm Res, Singapore 119613, Singapore
[3] Univ London Imperial Coll Sci Technol & Med, Dept Elect Engn, London SW7 2BT, England
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2008年 / 7卷 / 05期
关键词：
cooperative networks; distributed beamforming; cooperative diversity; outage probability;
D O I：
10.1109/TWC.2008.070105
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 diversity systems rely on using relay nodes to relay copies of transmitted information to the destination such that each copy experiences different channel fading, hence increasing the diversity of the system. However, without proper processing of the message at the relays, the performance of the cooperative system may not necessarily perform better than direct transmission systems. In this paper, we proposed a distributed beamforming and power allocation algorithm which substantially improves the diversity of the system with only very limited feedback from the destination node. We also derive outage probability as well as study the outage behavior of this scheme.
引用
收藏
页码：1817 / 1822
页数：6
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