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Non Iterative Algorithm for Multi-user Detection in DS-CDMA System: An Enhanced Harmony Search Algorithm

by Santosh N. Nemade, Mahesh T Kolte
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 72 - Number 7
Year of Publication: 2013
Authors: Santosh N. Nemade, Mahesh T Kolte
10.5120/12503-7935

Santosh N. Nemade, Mahesh T Kolte . Non Iterative Algorithm for Multi-user Detection in DS-CDMA System: An Enhanced Harmony Search Algorithm. International Journal of Computer Applications. 72, 7 ( June 2013), 1-7. DOI=10.5120/12503-7935

@article{ 10.5120/12503-7935,
author = { Santosh N. Nemade, Mahesh T Kolte },
title = { Non Iterative Algorithm for Multi-user Detection in DS-CDMA System: An Enhanced Harmony Search Algorithm },
journal = { International Journal of Computer Applications },
issue_date = { June 2013 },
volume = { 72 },
number = { 7 },
month = { June },
year = { 2013 },
issn = { 0975-8887 },
pages = { 1-7 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume72/number7/12503-7935/ },
doi = { 10.5120/12503-7935 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:37:15.440891+05:30
%A Santosh N. Nemade
%A Mahesh T Kolte
%T Non Iterative Algorithm for Multi-user Detection in DS-CDMA System: An Enhanced Harmony Search Algorithm
%J International Journal of Computer Applications
%@ 0975-8887
%V 72
%N 7
%P 1-7
%D 2013
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this paper, a non iterative algorithm for MUD in DS-CDMA system is proposed. The proposed multiuser algorithm is performed based on harmony search algorithm. In the proposed algorithm, a new harmony memory updating is based on the random and mean operation. So, the proposed harmony search algorithm is reduced the complexity and the user information interference. Hence, the bit error rate of the transmitted code reduced. In the enhanced harmony search algorithm, the marginal distribution for each observed and unobserved node are calculated. The proposed multiuser detection algorithm is applicable in run time user identification process, so the MUD complexity and the required time are concentrated. Also, the iteration can be predefined based on the number of users, signal interference and signal to noise ratio. This improves the multi-user efficiency, reduce the information losses and power corruption in CDMA channel. The proposed technique is implemented in MATLAB and the performance is evaluated.

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Index Terms

Computer Science
Information Sciences

Keywords

DS-CDMA system multiuser detection enhanced harmony search algorithm bit error rate

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