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

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2 Author(s)
Madhukumar, A.S. ; Centre for Wireless Commun., Singapore ; Chin, F.

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

Published in:

Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on  (Volume:2 )

Date of Conference:

Sep/Oct 2001