Transmit power allocation for non-regenerative multi-relay system

被引：0
|
作者：
Zhang, JM [1 ]
Zhang, Q [1 ]
Wang, Y [1 ]
Zhang, P [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Wireless Technol Innovat Inst, Beijing 100876, Peoples R China
来源：
IEEE 2005 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Proceedings, Vols 1 and 2 | 2005年
关键词：
D O I：
暂无
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：
By allowing multiple users to cooperate and share their antennas effectively, the multi-relay system based on Multi-Input-Multi- Output (MIMO) techniques realizes spatial diversity gain in a distributed manner. This paper analyzes the capacity of a two-hop non-regenerative system with multiple relay stations (RSs). Given a certain power constraint, an adaptive power allocation (APA) scheme is developed to maximize the end-to-end achievable rate. Numerical results show that the APA scheme can allocate fractional power efficiently to each hop and select the relaying intellectively based on the power allocation results, which improves the power efficiency and enhances the performance of the multi-relay system significantly.
引用
收藏
页码：1631 / 1634
页数：4
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