Coherent detection of biorthogonal signals over Rayleigh fading channels

Author

Uhm, Oui Suk ; Yoon, Soon Young ; Lee, Hwang So0

Author_Institution

Dept. of Inf. & Commun. Eng., Korea Adv. Energy Res. Inst., Seoul, South Korea

Volume

32

Issue

2

fYear

1996

fDate

1/18/1996 12:00:00 AM

Firstpage

89

Lastpage

91

Abstract

A practical coherent detection scheme for biorthogonal signals over Rayleigh fading channels is proposed. The proposed scheme improves the bit error rate (BER) performance compared to the noncoherent detection schemes for biorthogonal signals. It also outperforms the coherent and noncoherent detection schemes for orthogonal signals with comparable bandwidth efficiency. The BER performance for a Rayleigh fading channel with two path diversity combining is obtained by computer simulation. The results show that the required average signal-to-noise ratio per bit γ_b can be reduced by as much as 1.4 dB when we use this system in the CDMA cellular reverse link

Keywords

Rayleigh channels; cellular radio; code division multiple access; diversity reception; fading; signal detection; BER performance; CDMA cellular reverse link; Rayleigh fading channels; average signal-to-noise ratio; bandwidth efficiency; biorthogonal signals; bit error rate; coherent detection; two path diversity combining;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19960087

Filename

490853