Non-coherent MT-CDMA system with diversity combining

Author

Rahman, Q.M. ; Sesay, Abu B.

Author_Institution

Dept. of Electr. & Comput. Eng., Calgary Univ., Alta.

Volume

2

fYear

2001

fDate

2001

Firstpage

1351

Abstract

This paper is an extension of the previous work of Rahman and Sesay (see Proceedings of IEEE Canadian Conference on Electrical and Computer Engineering, Halifax, Canada, p.245-49, 2000) where they evaluated the performance of a non-coherent MT-CDMA system using differential binary phase shift keying (DBPSK) modulation. Here, we investigate the performance of the same system using diversity combining. The paper presents the theoretical analysis in terms of the average bit error rate (BER). The study is carried out for a slowly Rayleigh fading and frequency selective channel in an indoor environment using M-branch post-detection diversity combining. The influences of the diversity order and number of tones are studied here, for a given bandwidth (BW), bit rate and transmitter power. The analysis and supporting simulation work show that the post-detection diversity provides significant BER improvement over non-diversity reception for a non-coherent MT-CDMA system

Keywords

OFDM modulation; Rayleigh channels; code division multiple access; differential phase shift keying; diversity reception; error statistics; indoor radio; multipath channels; multiuser channels; spread spectrum communication; DBPSK; DS-SS; M-branch post-detection diversity combining; OFDM; average BER; average bit error rate; bandwidth; bit rate; differential binary phase shift keying; direct sequence spread spectrum; diversity order; frequency selective channel; indoor environment; multipath channel; multitone code-division multiple access; noncoherent MT-CDMA system; nondiversity reception; orthogonal frequency division multiplexing; simulation; slowly Rayleigh fading channel; system performance; tones; transmitter power; Bandwidth; Binary phase shift keying; Bit error rate; Bit rate; Diversity reception; Frequency diversity; Indoor environments; Phase modulation; Rayleigh channels; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2001. Canadian Conference on

Conference_Location

Toronto, Ont.

ISSN

0840-7789

Print_ISBN

0-7803-6715-4

Type

conf

DOI

10.1109/CCECE.2001.933647

Filename

933647