Optimal design of non-regenerative MIMO wireless relays

被引：0
|
作者：
Tang, Xiaojun [1 ]
Hua, Yingbo
机构：
[1] Rutgers State Univ, Wireless Informat Network Lab, Piscataway, NJ 08854 USA
[2] Univ Calif Riverside, Dept Elect Engn, Riverside, CA 92521 USA
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2007年 / 6卷 / 04期
基金：
美国国家科学基金会;
关键词：
multiple-antenna relay; MIMO relay; non-regenerative relay; capacity analysis; optimal canonical coordinates; optimal power allocation; DIVERSITY;
D O I：
10.1109/TWC.2007.348336
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：
Given a multiple-antenna source and a multiple-antenna destination, a multiple-antenna relay between the source and the destination is desirable under useful circumstances. A non-regenerative multiple-antenna relay, also called nonregenerative MIMO (multi-input multi-output) relay, is designed to optimize the capacity between the source and the destination. Without a direct link between the source and the destination, the optimal canonical coordinates of the relay matrix are first established, and the optimal power allocations along these coordinates are then found. The system capacity with the optimal relay matrix is shown to be significantly higher than those with heuristic relay matrices. When a direct link is present, upper and lower bounds of the optimal system capacity are discussed.
引用
收藏
页码：1398 / 1407
页数：10
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