Design of a high-speed MC-CDMA system for broadband mobile radio communications

Author

Madhukumar, A.S. ; Chin, Francois

Author_Institution

Centre for Wireless Commun., Singapore

Volume

2

fYear

2001

fDate

Sep/Oct 2001

Abstract

This paper is concerned with a new method to enhance the bandwidth efficiency of an MC-CDMA system by using a residue number based representation for information symbols. The residues are mapped into a set of orthogonal sequences and are transmitted in parallel. To increase the data rate further, a modified residue representation scheme is used with significantly lesser number of orthogonal sequences. A multicarrier modulation scheme is used for both transmission and reception of residue channels. The issues involved in the design of an enhanced RNS based MC-CDMA architecture is discussed and the performance of the system is evaluated in a frequency selective Rayleigh fading channel via extensive simulations

Keywords

Rayleigh channels; binary sequences; broadband networks; code division multiple access; mobile radio; modulation; residue number systems; time-varying channels; MC-CDMA system; bandwidth efficiency; broadband mobile radio; frequency selective Rayleigh fading channel; information symbols; multicarrier modulation; orthogonal sequences; performance; residue number based representation; simulations; Bit error rate; Bit rate; Broadband communication; Fading; Frequency; Land mobile radio; Mobile communication; Multiaccess communication; Multicarrier code division multiple access; Narrowband;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-7244-1

Type

conf

DOI

10.1109/PIMRC.2001.965310

Filename

965310