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Title: Multi User Chaos Based DS-CDMA System Using Orthogonal Chaotic Vector
Authors: S, Venkatesh
Singh, P
Keywords: orthogonal chaotic vector,
gram-schimdt orthonormalisation,
Issue Date: 2011
Citation: International Conference On Electronics Systems ( ICES – 2011 ) January 07 – 09, 2011, National Institute of Technology, Rourkela
Abstract: The quasi orthogonal characteristics of chaotic vectors used in conventional chaos based DS CDMA system leads to MAI. The effect of MAI deteriorates the performance of the multi-user communication system. Inorder to eliminate the effect of MAI we propose a scheme which uses orthogonal chaotic vector as spreading to modulate the message data. At the receiver a simple correlator type detector is used. Analytical expressions for BER is derived for the case of AWGN channel and compared with that of simulation results.
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