Open Access

Design and Performance Analysis of an Adaptive Receiver for Multicarrier DS-CDMA

EURASIP Journal on Wireless Communications and Networking20072007:010462

DOI: 10.1155/2007/10462

Received: 26 January 2006

Accepted: 21 May 2007

Published: 26 June 2007


An adaptive parallel interference cancelation (APIC) scheme is proposed for the multicarrier direct sequence code division multiple access (MC-DS-CDMA) system. Frequency diversity inherent in the MC system is exploited through maximal ratio combining, and an adaptive least mean square algorithm is used to estimate the multiple access interference. Theoretical analysis on the bit-error rate (BER) of the APIC receiver is presented. Under a unified signal model, the conventional PIC (CPIC) is shown to be a special case of the APIC. Hence the BER derivation for the APIC is also applicable to the CPIC. The performance and the accuracy of the theoretical results are examined via simulations under different design parameters, which show that the APIC outperforms the CPIC receiver provided that the adaptive parameters are properly selected.


Authors’ Affiliations

Institute for Infocomm Research (I2R) (A*STAR), Agency for Science, Technology and Research


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© Huahui Wang et al. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.