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Robust and Distributed Beamforming
Gan, Zheng; Kai-Kit, Wong; Arogyaswami, Paulraj et al.
2009In Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Peer reviewed
 

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Abstract :
[en] This paper studies the use of amplify-and-forward (AF) relays for robust beamforming, with the aid of imperfect channel state information (CSI) at the sender. In particular, the maximization of the worst-case signal-to-noise ratio (SNR) at the destination terminal is studied under a bounded spherical region for the norm of CSI error vector. We show that under a condition on the estimated CSI quality, the robust-optimal collaborative-relay beamforming (CRBF) can be obtained by S-Procedure and rank relaxation techniques. In addition, a distributed algorithm is proposed by examining the structure of the optimal CRBF.
Disciplines :
Computer science
Electrical & electronics engineering
Identifiers :
UNILU:UL-CONFERENCE-2010-427
Author, co-author :
Gan, Zheng
Kai-Kit, Wong
Arogyaswami, Paulraj
Ottersten, Björn ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Language :
English
Title :
Robust and Distributed Beamforming
Publication date :
2009
Event name :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Event place :
Nanjing, China
Event date :
13-15 Nov. 2009
Audience :
International
Main work title :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
ISBN/EAN :
978-1-4244-4856-2
Pages :
1-5
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 03 October 2013

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