Sum-rate optimization for the MIMO IC under imperfect CSI: A deterministic equivalent approach

Author

Rezaee, Mohsen ; Couillet, Romain ; Guillaud, Maxime ; Matz, Gerald

Author_Institution

Inst. of Telecommun., Vienna Univ. of Technol., Vienna, Austria

fYear

2012

fDate

17-20 June 2012

Firstpage

259

Lastpage

263

Abstract

A new method is proposed to determine precoding matrices that achieve local maxima of the expected sum rate in a multiple input multiple output interference channel (MIMO IC), in the realistic scenario where only partial channel state information (CSI) is available at the transmitters. Relying on a random matrix analysis of the capacity of large dimensional Ricean channels introduced in [1], the expected sum rate of the K-user MIMO IC is approximated by a deterministic equivalent to which an iterative gradient scheme is applied to find local maxima of the approximated sum rate.

Keywords

MIMO communication; Rician channels; gradient methods; interference (signal); matrix algebra; radio transmitters; wireless channels; K-user MIMO IC; deterministic equivalent approach; imperfect CSI; iterative gradient scheme; large dimensional Ricean channels; local maxima; multiple input multiple output interference channel; partial channel state information; precoding matrices; random matrix analysis; sum-rate optimization; transmitters; Integrated circuits; Interference channels; MIMO; Receivers; Transmitters; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications (SPAWC), 2012 IEEE 13th International Workshop on

Conference_Location

Cesme

ISSN

1948-3244

Print_ISBN

978-1-4673-0970-7

Type

conf

DOI

10.1109/SPAWC.2012.6292905

Filename

6292905