标题:Robust Peer-to-Peer Collaborative-Relay Beamforming with Ellipsoidal CSI Uncertainties
作者:Zheng, Dong; Liu, Ju; Wong, Kai-Kit; Chen, He; Chen, Lei
作者机构:[Zheng, Dong; Liu, Ju; Chen, Lei] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.; [Zheng, Dong; Liu, Ju; Chen, Lei] Xidian U 更多
通讯作者:Zheng, D.
通讯作者地址:[Zheng, D]Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.
来源:IEEE COMMUNICATIONS LETTERS
出版年:2012
卷:16
期:4
页码:442-445
DOI:10.1109/LCOMM.2012.021612.111953
关键词:Distributed beamforming; diversity; relay
摘要:This letter considers a multiuser peer-to-peer communication network using a number of shared relays for collaborative beamforming and aims to minimize the total transmitted power of the relays whilst satisfying the targets of the signal-to-interference and noise ratios (SINRs) at the destination nodes by optimizing the relaying coefficients with imperfect channel state information (CSI). By deriving an equivalent form for the SINR constraints and an upper bound for the relay power, the problem can be tackled by solving a semi-definite program (SDP). Results reveal that the proposed technique outperforms significantly a conventional robust approach in terms of the transmitted power, and has only a mild increase in power if compared to the non-robust optimum which fails to meet the SINR targets.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:18
Scopus被引频次:21
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84862784429&doi=10.1109%2fLCOMM.2012.021612.111953&partnerID=40&md5=c72eb1c2bf450637cf3c2c13b271a50e
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