Opportunistic Relaying for Multi-Antenna Cooperative Decode-and-Forward Relay Networks

被引：0
|
作者：
Zeng, Weiliang [1 ]
Xiao, Chengshan [2 ]
Wang, Youzheng [1 ]
Lu, Jianhua [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Tsinghua Natl Lab Informat Sci & Technol, State Key Lab Microwave & Digital Commun, Beijing 100084, Peoples R China
[2] Univ Missouri Sci & Technol, Dept Elect & Comp Engn, Columbia, MO 65211 USA
来源：
2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS | 2010年
基金：
美国国家科学基金会;
关键词：
DIVERSITY; SELECTION;
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：
In this paper, we investigate the relaying scheme for multi-antenna cooperative networks without channel state information at the transmitters. It is shown that the classic opportunistic relaying scheme, which allows only one relay node to forward the message, may lead to significant loss when it is extended to the corresponding multi-antenna relay scenarios. A generalized opportunistic relaying approach, which selects more transmit antennas distributed on multiple relay nodes to transmit data simultaneously, is proposed to maximize the network throughput via balancing the source-relay and the relay-destination channels. Numerical examples show the large impact of multiple antennas and relays on the network throughput, and the significant gains obtained through the proposed opportunistic cooperation scheme.
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页数：5
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