In this paper, a novel optimal chaos synchronization (CS)-based method is proposed to realize multi-user detection of quasi-orthogonal chaotic code-division multiple access (CDMA) system. Theoretical analysis and computer simulations show that the multi-user quasi-orthogonal chaotic signal used in the CDMA system can be detected successfully by using the optimal CS. . Computer simulations show that the proposed method achieves a lower bit-error-rate performance than the conventional decorrelating detector and the minimum mean-square-error detector, and its performance is closer to that of the single-user Rake detector.
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He et al. (2005) studied this question.
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