Performance analysis for a chaos-based code-division multiple access system in wide-band channel

Ciprian Doru Giurcăneanu; Raneetha Vasundara Abeywickrama; Stevan Berber

Performance analysis for a chaos-based code-division multiple access system in wide-band channel

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Author(s): Ciprian Doru Giurcăneanu¹ ; Raneetha Vasundara Abeywickrama¹ ; Stevan Berber²
- Affiliations: 1: Department of Statistics , University of Auckland , Auckland , New Zealand ;
  2: Department of Electrical and Computer Engineering , University of Auckland , Auckland , New Zealand
Source: Volume 2015, Issue 8, August 2015, p. 276 – 284
DOI: 10.1049/joe.2015.0117 , Online ISSN 2051-3305

This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)

Received 29/06/2015, Accepted 13/07/2015, Published 30/07/2015

Code-division multiple access technology is widely used in telecommunications and its performance has been extensively investigated in the past. Theoretical results for the case of wide-band transmission channel were not available until recently. The novel formulae which have been published in 2014 can have an important impact on the future of wireless multiuser communications, but limitations come from the Gaussian approximations used in their derivation. In this Letter, the authors obtain more accurate expressions of the bit error rate (BER) for the case when the model of the wide-band channel is two-ray, with Rayleigh fading. In the authors’ approach, the spreading sequences are assumed to be generated by logistic map given by Chebyshev polynomial function of order two. Their theoretical and experimental results show clearly that the previous results on BER, which rely on the crude Gaussian approximation, are over-pessimistic.

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Performance analysis for a chaos-based code-division multiple access system in wide-band channel

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