Suboptimal maximum-likelihood multiuser detection of synchronous CDMA on frequency-selective multipath channels
نویسندگان
چکیده
منابع مشابه
Suboptimal maximum-likelihood multiuser detection of synchronous CDMA on frequency-selective multipath channels
We propose a signal processing technique, based on the estimate-maximize algorithm, in order to perform multiuser code-division multiple-access (CDMA) detection. This algorithm iteratively seeks for the maximum-likelihood solution. The resulting structure is a successive interference cancellation scheme which can be applied to both synchronous and asynchronous CDMA. Higher performance than simi...
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The problem of multiuser detection in multipath CDMA channels with receiver antenna array is considered. The optimal space-time multiuser receiver structure is rst outlined, followed by linear space-time multiuser detection methods based on iterative interference cancellation. Singleuser-based space-time processing methods are also considered and are compared with the multiuser approach. It is ...
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The maximum-likelihood (ML) multiuser detector is well known to exhibit better bit-error-rate (BER) performance than many other multiuser detectors. Unfortunately, ML detection (MLD) is a nondeterministic polynomial-time hard (NP-hard) problem, for which there is no known algorithm that can find the optimal solution with polynomial-time complexity (in the number of users). In this paper, a poly...
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ژورنال
عنوان ژورنال: IEEE Transactions on Communications
سال: 2000
ISSN: 0090-6778
DOI: 10.1109/26.843204