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The Performance of Genetic Algorithm for Synchronized Chaotic Chen System in CDMA Satellite Channel

Authors: Salah Salmi, Karim Kemih, Malek Benslama


Synchronization is a difficult problem in CDMA satellite communications. Due to the influence of additive noise and fading in the mobile channel, it is not easy to keep up with the attenuation and offset. This paper considers a recently proposed approach to solve the problem of synchronization chaotic Chen system in CDMA satellite communication in the presence of constant attenuation and offset. An analytic algorithm that provides closed form channel and carrier offset estimates is presented. The principle of this approach is based on adding a compensation block before the receiver to compensate the distortion of the imperfect channel by using genetic algorithm. The resultants presented, show that the receiver is able to recover rapidly the synchronization with the transmitter.

Keywords: Chaotic Chen system, genetic algorithm, Synchronization, CDMA

Digital Object Identifier (DOI):

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[1] E. Lutz, M. Werner, A. Jahn, Satellite Systems for Personal and Broadband Communication, Edition Wiley, 2000
[2] R. W. Jones. Handbook on satellite communication,International Telecommunication Union, edition Wiley, 2002
[3] W.Wang, S.Blostein, "Video image transmission over mobile satellite channels", Signal processing image communication, Vol. 16, pp.531- 540, 2001.
[4] B. R. Vojcic, L. B. Milstein, R. L. Pickholtz.: "Downlink DS CDMA Performance Over a Mobile Satellite Channel", IEE Trans. Veh. Technol., vol.45, No. 3, pp 551-559, August 1996
[5] R. De Gaudenzi and F. Giannetti, "DS-CDMA satellite diversity reception for personal satellite communication: Satellite-to-mobile link performance analysis," IEEE Trans. Veh. Technol., vol. 47, pp. 658-672, May 1998.
[6] T. Liao and N. Huang, "An observer-based approach for chaotic synchronization with applications to secure communications," IEEE Trans. Circuits Syst.ÔÇöI: Fundamental Theory Applicat., vol. 46, pp. 1144-1150, Sept. 1999
[7] Z. Jiang, "A note on chaotic secure communication systems," IEEE Trans. Circuits Syst.ÔÇöI: Fundamental Theory Applicat., vol. 49, pp. 92- 96, Jan. 2002
[8] L. M. Pecora and T. L. Carroll, Synchronization in chaotic systems", Phys. Rev. Lett., vol.64, no. 8, pp. 821-824, 1990.
[9] T. L. Carroll and L. M. Pecora, "Synchronization in chaotic circuits", IEEE Trans. on Circuits Syst., vol. 38, no. 4, pp. 453-456, 1991.
[10] L. Kocarev and U. Parlitz, "General approach for chaotic synchronization with application to communication", Phys. Rev. Lett., vol. 74, pp. 5028-5031, 1995
[11] Mazzini G., Rovatti R. and Setti G. "Sequences synchronization chaosbased DS-CDMA systems". IEEE international symposium on circuit and antenna (ISCAS-98). Monterey, Califomia, USA. part 4 of 6, 1998, pp.485-488,.
[12] X. Liao, G Chen and O. wang, " On Global synchronization of chaotic systems", Dynamics of continuous discrete and impulsive systems, Vol 1, 2006
[13] X. Yang, T.X. Wu, d . Jaggard "synchronization recovery of chaotic wave through an imperfect channel", IEEE antennas and wireless propagation letters, vol. 1, pp154-156, 2002
[14] H. Chou, G. Premkumar, and C. Chu, "Genetic algorithm for communications network design- an empirical study of the factors that influence performance," IEEE Trans. Evolutionary Computation, vol. 5, pp. 236-249, June 2001.