Performance/complexity issues in multi-user CDMA systems
Date
1995
Authors
Schlegel, C.B.
Rasmussen, L.K.
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Conference paper
Citation
1995 IEEE 45th Vehicular Technology Conference. Countdown to the Wireless Twenty-First Century, 1995, vol.1, pp.494-498
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1995 IEEE 45th Vehicular Technology Conference. Countdown to the Wireless Twenty-First Century (25 Jul 1995 - 28 Jul 1995 : Chicago, USA)
Abstract
Joint detection of synchronous and asynchronous CDMA is considered. A near-optimal detector structure is presented which consists of a linear preprocessor, a whitening matched matrix filter, followed by a reduced-complexity tree search, the M-algorithm. It is shown that this combination achieves a performance which is virtually identical to that of the optimal receiver, even for large numbers of users. The complexity of this detector is linear in the number of users K.
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Copyright 1995 IEEE