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Performance Enhancement of MC-CDMA Systems through SBA assist log-MAP based Turbo MUD

Published on July 2012 by K. Rasadurai, J. Dhanancheziyan, Pushpakodi
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Advanced Computing and Communication Technologies for HPC Applications
Foundation of Computer Science USA
ACCTHPCA - Number 2
July 2012
Authors: K. Rasadurai, J. Dhanancheziyan, Pushpakodi
644379a1-ff35-44a4-93e9-c4d91a2bc6c6

K. Rasadurai, J. Dhanancheziyan, Pushpakodi . Performance Enhancement of MC-CDMA Systems through SBA assist log-MAP based Turbo MUD. Advanced Computing and Communication Technologies for HPC Applications. ACCTHPCA, 2 (July 2012), 19-24.

@article{
author = { K. Rasadurai, J. Dhanancheziyan, Pushpakodi },
title = { Performance Enhancement of MC-CDMA Systems through SBA assist log-MAP based Turbo MUD },
journal = { Advanced Computing and Communication Technologies for HPC Applications },
issue_date = { July 2012 },
volume = { ACCTHPCA },
number = { 2 },
month = { July },
year = { 2012 },
issn = 0975-8887,
pages = { 19-24 },
numpages = 6,
url = { /specialissues/accthpca/number2/7558-1012/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Special Issue Article
%1 Advanced Computing and Communication Technologies for HPC Applications
%A K. Rasadurai
%A J. Dhanancheziyan
%A Pushpakodi
%T Performance Enhancement of MC-CDMA Systems through SBA assist log-MAP based Turbo MUD
%J Advanced Computing and Communication Technologies for HPC Applications
%@ 0975-8887
%V ACCTHPCA
%N 2
%P 19-24
%D 2012
%I International Journal of Computer Applications
Abstract

Multiuser detection (MUD) using turbo coding is a powerful technique for enhancing the performance of the multi carrier code division multiple access (MC-CDMA) systems. The multiple access interference (MAI) is one of the factors that affect the bit error rate (BER) of the MC-CDMA systems severely. Among the different MUD algorithms maximum a posteriori (MAP) criterion based multi user detector greatly improves the system performance and mitigates the effects of MAI. However its complexity increases exponentially with the increase in number of users and constellation size. In this paper a low complexity iterative soft sensitive bits algorithm (SBA) aided Logarithmic-MAP (Log-MAP) based turbo MUD is proposed to reduce the complexity and to improve the BER performance of the MC-CDMA systems

References
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Index Terms

Computer Science
Information Sciences

Keywords

Log-map Mai Mc-cdma Mud Turbo Codes Soft Sensitive Bits Algorithm (sba).