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Hybrid Genetic Algorithm Based Detection Schemes for Synchronous CDMA Systems

Hybrid Genetic Algorithm Based Detection Schemes for Synchronous CDMA Systems
Hybrid Genetic Algorithm Based Detection Schemes for Synchronous CDMA Systems
In this paper, we applied a hybrid genetic algorithm (GA) scheme as a suboptimal multiuser detection technique in bit-synchronous code division multiple access (CDMA) systems over Gaussian channel as well as over s single-path Rayleigh fading channel. The proposed hybrid GA scheme attempts to search for the users’ transmitted bit sequence that optimizes the correlation metric employed. Simulation results showed that the BER performance of our proposed multiuser detector approaches the single-user performance bound, while imposing a lower complexity a compared to that of the optimum multiuser detection, especially for a high number of users. Furthermore, the parameters of the hybrid GA scheme can be adjusted, in order to attain a tradeoff between the computational complexity, BER performance and the detection time.
1400-1404
Yen, K.
612372e4-f48b-4d17-8e9f-6dd57676d3e9
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Yen, K.
612372e4-f48b-4d17-8e9f-6dd57676d3e9
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Yen, K. and Hanzo, L. (2000) Hybrid Genetic Algorithm Based Detection Schemes for Synchronous CDMA Systems. VTC'2000, Tokyo, Japan. 15 - 18 May 2000. pp. 1400-1404 .

Record type: Conference or Workshop Item (Paper)

Abstract

In this paper, we applied a hybrid genetic algorithm (GA) scheme as a suboptimal multiuser detection technique in bit-synchronous code division multiple access (CDMA) systems over Gaussian channel as well as over s single-path Rayleigh fading channel. The proposed hybrid GA scheme attempts to search for the users’ transmitted bit sequence that optimizes the correlation metric employed. Simulation results showed that the BER performance of our proposed multiuser detector approaches the single-user performance bound, while imposing a lower complexity a compared to that of the optimum multiuser detection, especially for a high number of users. Furthermore, the parameters of the hybrid GA scheme can be adjusted, in order to attain a tradeoff between the computational complexity, BER performance and the detection time.

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More information

Published date: May 2000
Additional Information: Event Dates: 15-18 May 2000 Organisation: IEEE Address: Tokyo, Japan
Venue - Dates: VTC'2000, Tokyo, Japan, 2000-05-15 - 2000-05-18
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 257121
URI: http://eprints.soton.ac.uk/id/eprint/257121
PURE UUID: ddb902de-7a36-41f8-84ac-40f41ed6cebd
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 02 Feb 2004
Last modified: 10 Dec 2019 01:58

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