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Title: Lattice MMSE single user receiver for asynchronous DS-CDMA systems [articol]
Authors: Paleologu, Constantin
Vlădeanu, Călin
Enescu, Andrei A.
Subjects: DS-CDMA
Adaptive filters
Issue Date: 2006
Publisher: Timişoara: Editura Politehnica
Citation: Paleologu, Constantin. Lattice MMSE single user receiver for asynchronous DS-CDMA systems. Timişoara: Editura Politehnica, 2006
Series/Report no.: Buletinul ştiinţific al Universităţii „Politehnica” din Timişoara, România. Seria electronică şi telecomunicaţii, Tom 51(65), fasc. 2 (2006), p. 97-102
Abstract: This paper considers a lattice Minimum Mean-Squared Error (MMSE) single user adaptive receiver for the asynchronous Direct Sequence – Code Division Multiple Access (DS-CDMA) system. It is based on the Gradient Adaptive Lattice (GAL) algorithm. Since the lattice predictor orthogonalizes the input signals this algorithm achieves a faster convergence rate than the transversal counterpart, the Least Mean Square (LMS) adaptive algorithm, paying with an increased computational complexity. Superior performances are obtained by adapting the tap weights several times during each bit interval.
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