Performance analysis of multiple antenna systems with VQ-based feedback

Author

Roh, J.C. ; Rao, B.D.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA

Volume

2

fYear

2004

fDate

7-10 Nov. 2004

Firstpage

1978

Abstract

We investigate vector quantization (VQ) methods for feeding back the channel information through a low-rate feedback channel in the context of multiple-antenna MISO systems. The performance of systems with VQ-based quantized beamforming is analyzed for the independent Rayleigh fading case. This requires finding the density of the squared inner-product between the optimum and the quantized beamforming vector, which is obtained by considering a simple approximation of the quantization cell. The approximate density function is used to lower bound the capacity loss due to quantization, the outage probability and the bit error probability.

Keywords

Rayleigh channels; antenna arrays; approximation theory; diversity reception; error statistics; feedback; vector quantisation; MISO systems; Rayleigh fading case; VQ-based feedback; approximate density function; bit error probability; channel information; multiple antenna systems; outage probability; quantized beamforming; simple approximation; vector quantization; Antenna feeds; Array signal processing; Capacity planning; Density functional theory; Feedback; Performance analysis; Rayleigh channels; Transmitters; Transmitting antennas; Vector quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

Print_ISBN

0-7803-8622-1

Type

conf

DOI

10.1109/ACSSC.2004.1399510

Filename

1399510