Multi-Dimensional Beamforming for Adaptive MIMO Systems

Author

Gheryani, Mabruk ; Wu, Zhiyuan ; Shayan, Yousef R.

Author_Institution

Dept. of Electr. Eng., Concordia Univ., Montreal, QC

fYear

2009

fDate

11-13 Feb. 2009

Firstpage

1

Lastpage

2

Abstract

A novel scheme called multi-dimensional beamforming is proposed for adaptive MIMO systems, which can achieve higher capacity than eigen-beamforming when more feedback bandwidth is available. Theoretical analysis and numerical results show that multi-dimensional beamforming improves capacity as compared to eigen-beamforming at relatively high signal-to-noise ratio. By extension of the existing beamforming scheme to multi-dimension, we are able to concatenate the scheme with space-time codes. Simulation results are also provided to evaluate the concatenated schemes with linear space-time codes at various data rates in terms of bit error rate.

Keywords

MIMO communication; Rayleigh channels; adaptive systems; bandwidth allocation; error statistics; space-time codes; Rayleigh flat fading channel; adaptive MIMO systems; bit error rate; feedback bandwidth; linear space-time codes; multidimensional beamforming; signal-to-noise ratio; Adaptive systems; Array signal processing; Bandwidth; Bit error rate; Concatenated codes; Feedback; MIMO; Signal analysis; Signal to noise ratio; Space time codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Pervasive Computing, 2009. ISWPC 2009. 4th International Symposium on

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4244-2965-3

Electronic_ISBN

978-1-4244-2966-0

Type

conf

DOI

10.1109/ISWPC.2009.4800596

Filename

4800596