Fuzzy recursive symbol-by-symbol detector for single user CDMA receivers

Authors:
J. Bas;A. na Perez Neira;M. A. L. Lagunas
Affiliations:
Univ. Politecnica de Catalunya, Spain;-;-
Venue:
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 200. on IEEE International Conference - Volume 02
Year:
2001

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Abstract

The Bayesian or maximum a posteriori (MAP) symbol-by-symbol detector allows minimum BER single user detection in CDMA systems with less memory requirements than the multiuser maximum likelihood sequence estimator. This work proposes a further complexity reduction by developing a fuzzy recursive implementation of the Bayesian detector. Simulation studies demonstrate the almost optimal performance of the developed fuzzy detector. The resulting system offers a performance v.s. complexity trade-off very appealing for detection in a 3/sup rd/ generation mobile handset.