Abstract
In this letter, blind detection of multirate code-division multiple-access (CDMA) signals is revisited by exploiting a fast converging blind deconvolution approach-the super-exponential algorithm. Here, only the desired user's spreading code is assumed to be known, while its transmission delay may be unknown. Compared with existing higher order statistics-based blind multiuser detectors in a paper by Ma and Tugnait, when the system actually converges to the desired user (generally needs SNR>10 dB for both existing methods and the proposed approach), the proposed approach can achieve much better performance with significantly faster convergence speed.
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