Wavelet-based MC-CDMA cellular systems

Author

Muayyadi, A. ; Abu-Rgheff, M.N.A.

Author_Institution

CDMA Res. Group, Plymouth Univ., UK

Volume

1

fYear

2000

fDate

36770

Firstpage

145

Abstract

This paper presents work carried out on a multi-carrier code division multiple access (MC-CDMA) for a down-link cellular radio systems. The MC-CDMA system carries out energy spreading in all available sub-channels or in the frequency domain. It also performs multi-carrier modulation using a set of orthogonal (or biorthogonal) filters. The optimisation of these filters is done based on their time-frequency characteristics and depends also on the application. Here the biorthogonal filters are implemented with M-band wavelet-based system in a form of cosines modulated filters to configure a perfect reconstruction system. The simulation results show that this WB-MC-CDMA system suffers lower interchannel interference, thus making its response more robust against multipath fading and narrow band interference or jamming signal

Keywords

adjacent channel interference; cellular radio; channel bank filters; code division multiple access; fading channels; filtering theory; jamming; modulation; multipath channels; multiuser channels; signal reconstruction; wavelet transforms; M-band wavelet-based system; WB-MC-CDMA system; biorthogonal filters; cosines modulated filters; down-link cellular radio systems; energy spreading; filter optimisation; frequency domain; interchannel interference; jamming signal; multi-carrier code division multiple access; multi-carrier modulation; multipath fading; narrow band interference; orthogonal filters; perfect reconstruction system; simulation results; sub-channels; time-frequency characteristics; wavelet-based MC-CDMA cellular systems; Fading; Filters; Frequency domain analysis; Interchannel interference; Jamming; Land mobile radio cellular systems; Multicarrier code division multiple access; Narrowband; Robustness; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on

Conference_Location

Parsippany, NJ

Print_ISBN

0-7803-6560-7

Type

conf

DOI

10.1109/ISSSTA.2000.878100

Filename

878100