DocumentCode :
2844032
Title :
Robust linear beamformer designs for MIMO relaying broadcast channel with max-min fairness
Author :
Yun Li ; Haibin Wan ; Wen Chen
Author_Institution :
Grad. Sch. of Inf. Sci. & Technol., Univ. of Tokyo, Tokyo, Japan
fYear :
2015
fDate :
9-12 March 2015
Firstpage :
271
Lastpage :
275
Abstract :
In this paper, we address the robust source and relay matrices design for the multiple-input multiple-output (MIMO) relaying broadcast channels (BC) with imperfect channel state information at the transmitter (CSIT). Our objective is to maximize the minimum achievable rate among all users, which dominates the quality of service (QoS) performance of the system. In the proposed scheme, we first set up an equivalent problem, and then relax the constraints of the new problem to decouple it into three tractable subproblems. Finally, an iterative algorithm is proposed to jointly optimize the source and relay matrices. The advantage of the proposed scheme is demonstrated by numerical experiments.
Keywords :
MIMO communication; array signal processing; broadcast channels; iterative methods; quality of service; radio transmitters; relay networks (telecommunication); CSIT; MIMO relaying broadcast channel; QoS; channel state information; iterative algorithm; max-min fairness; multiple-input multiple-output relaying broadcast channels; quality of service; relay matrices design; robust linear beamformer designs; robust source matrices; transmitter; Algorithm design and analysis; Joints; MIMO; Optimization; Quality of service; Relays; Robustness; MIMO; QoS; Source and relay matrices design; imperfect CSIT; relaying broadcast channels;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2015 IEEE
Conference_Location :
New Orleans, LA
Type :
conf
DOI :
10.1109/WCNC.2015.7127481
Filename :
7127481
Link To Document :
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