Title :
Robust MAC MIMO Transceiver Design with Partial CSIT and CSIR
Author :
Zhang, Xi ; Palomar, Daniel P. ; Ottersten, Björn
Author_Institution :
R. Inst. of Technol., Stockholm
Abstract :
In practical wireless systems, the design of linear MIMO transceivers should be robust to imperfect channel state information (CSI), especially in multiuser systems where accurate CSI is difficult to obtain. This paper considers the case in which the CSI is perturbed at both sides of the link. In such a case, it is possible to optimally design robust MIMO transceivers to minimize the average sum MSE of all the data streams and the users. For systems with a sum power constraint, our robust design can be shown to be a convex SDP problem; for systems with individual power constraints, our robust design is based on an underlying SDP problem.
Keywords :
MIMO communication; channel estimation; multi-access systems; radio access networks; transceivers; MAC MIMO transceiver; channel state information; multiuser systems; wireless systems; Base stations; Covariance matrix; Delay estimation; Design engineering; Feedback; MIMO; Receiving antennas; Robustness; Transceivers; Transmitters;
Conference_Titel :
Signals, Systems and Computers, 2007. ACSSC 2007. Conference Record of the Forty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-2109-1
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2007.4487222