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Erschienen in: Soft Computing 4/2017

19.08.2015 | Methodologies and Application

Performance of a novel evolutionary genetic-based multi-user detector for multi-carrier CDMA communication systems

verfasst von: Yung-Fa Huang, Tan-Hsu Tan, Chia-Hsin Cheng, Wei-Chen Lai, Hsing-Chung Chen

Erschienen in: Soft Computing | Ausgabe 4/2017

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Abstract

In this paper, we investigate the performance of a modified evolutionary multi-user detector (MUD) in multi-carrier direct-sequence code-division multiple-access (MC-CDMA) communication systems over frequency-selective fading channels. The genetic algorithm (GA), which tries to reduce the complexity in optimal detection due to greedy exhausted searching, performs using the adequate sub-optimal multi-user detector for MC-CDMA systems. In this paper, we propose a forcing mutation scheme for the genetic algorithm (GA) to perform a forcing mutation evolutionary multi-user detector (FME-MUD) and to largely reduce computational complexity. Simulation results show that with six generations, the proposed FME-MUD scheme outperforms the conventional GA-MUD, especially at heavy system loads.

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Metadaten
Titel
Performance of a novel evolutionary genetic-based multi-user detector for multi-carrier CDMA communication systems
verfasst von
Yung-Fa Huang
Tan-Hsu Tan
Chia-Hsin Cheng
Wei-Chen Lai
Hsing-Chung Chen
Publikationsdatum
19.08.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Soft Computing / Ausgabe 4/2017
Print ISSN: 1432-7643
Elektronische ISSN: 1433-7479
DOI
https://doi.org/10.1007/s00500-015-1838-7

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