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Study of the distance spectrum of Chaos-Coded Modulation

Recently, some works have shown that it was possible to obtain quite good BER performances over AWGN channels with chaotic systems. This paper proposes new insights for the Chaos-Coded Modulation schemes originally proposed by S. Kozic et al. A detailed study of the distance spectrum of such schemes is proposed and an approximation of its distribution by means of Gaussian mixtures is given.