Residue number system-based multicarrier CDMA system for high-speed broadband wireless access

Author

Madhukumar, A.S. ; Chin, Francois

Author_Institution

Centre for Wireless Commun., Singapore, Singapore

Volume

48

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

46

Lastpage

52

Abstract

This correspondence is concerned with a new method to enhance the bandwidth efficiency of a multicarrier 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. A new modulation scheme is proposed to increase the data rate further by combining residue number representation, PSK/QAM modulation, orthogonal spreading and multicarrier modulation. The performance of the proposed system is evaluated in a frequency selective Rayleigh fading channel via extensive simulations. The present correspondence discusses the design issues associated with the system together with the performance results

Keywords

Rayleigh channels; broadband networks; code division multiple access; phase shift keying; quadrature amplitude modulation; radio access networks; residue number systems; PSK/QAM modulation; bandwidth efficiency; data rate; frequency selective Rayleigh fading channel; high-speed broadband wireless access; information symbols; modulation scheme; multicarrier modulation; orthogonal sequences; orthogonal spreading; residue number representation; residue number system-based multicarrier CDMA system; Bit rate; Digital audio broadcasting; Fading; Frequency; Modulation coding; Multiaccess communication; Multicarrier code division multiple access; Narrowband; Phase shift keying; Quadrature amplitude modulation;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.992855

Filename

992855