Optimum diversity receiver structures for combining with estimation errors

Author

Chen, Yunfei ; Beaulieu, Norman C.

Author_Institution

Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada

Volume

1

fYear

2004

fDate

29 Nov.-3 Dec. 2004

Firstpage

474

Abstract

Optimum diversity receivers that operate in the presence of estimation errors are proposed. Previous work has mainly examined the performance of maximal ratio combining (MRC) with estimation errors. It is shown that MRC is not optimal when estimation errors occur. Moreover, it is shown that the optimum diversity receiver in the presence of estimation errors can be derived by using knowledge of the channel estimate statistics. Numerical results show that the optimum diversity receiver can perform as much as 2.0 dB in signal-to-noise ratio better than the conventional MRC receiver in some cases.

Keywords

channel estimation; diversity reception; error statistics; radio receivers; SNR; channel estimate statistics; diversity combining; estimation errors; maximal ratio combining; optimum diversity receiver structures; signal-to-noise ratio; Computer errors; Diversity reception; Error analysis; Estimation error; Fading; Phase shift keying; Quadrature amplitude modulation; Signal to noise ratio; Statistical analysis; Statistical distributions;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE

Print_ISBN

0-7803-8794-5

Type

conf

DOI

10.1109/GLOCOM.2004.1377992

Filename

1377992