DocumentCode
2989372
Title
MIMO broadcast channel optimization under general linear constraints
Author
Huh, Hoon ; Papadopoulos, Helene ; Caire, Giuseppe
Author_Institution
Univ. of Southern California, Los Angeles, CA, USA
fYear
2009
fDate
June 28 2009-July 3 2009
Firstpage
2664
Lastpage
2668
Abstract
The optimization of the transmit parameters (power allocation and steering vectors) for the MIMO BC under general linear constraints is treated under the optimal DPC coding strategy and the simple suboptimal linear zero-forcing beamforming strategy. In the case of DPC, we show that ¿SINR duality¿ and ¿min-max duality¿ yield the same dual MAC problem, and compare two alternatives for its efficient solution. In the case of zero-forcing beamforming, we provide a new efficient algorithm based on the direct optimization of a generalized inverse matrix. In both cases, the algorithms presented here address the problems in the most general form and can be applied to special cases previously considered, such as per-antenna and per-group of antennas power constraints, ¿forbidden interference direction¿ constraints, or any combination thereof.
Keywords
MIMO communication; broadcast channels; differential pulse code modulation; optimisation; MIMO; broadcast channel optimization; general linear constraints; generalized inverse matrix; suboptimal linear zero-forcing beamforming; AWGN; Array signal processing; Broadcasting; Constraint optimization; Directive antennas; Interference constraints; Laboratories; MIMO; Transmitters; Vectors;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location
Seoul
Print_ISBN
978-1-4244-4312-3
Electronic_ISBN
978-1-4244-4313-0
Type
conf
DOI
10.1109/ISIT.2009.5205911
Filename
5205911
Link To Document