Performance evaluation of a novel CDMA detection technique: the two-state approach

Authors:
Enrico Del Re;Lorenzo Mucchi;Luca Simone Ronga
Affiliations:
Department of Electronics and Telecommunications (DET), University of Florence, Florence, Italy;Department of Electronics and Telecommunications (DET), University of Florence, Florence, Italy;CNIT Florence Unit, University of Florence, Florence, Italy
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2005

Citing 2
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Multiuser Detection

Multiuser Detection
A new algorithm for blind adaptive multiuser detection in frequency selective multipath fading channel

IEEE Transactions on Wireless Communications

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Abstract

The use of code division multiple access (CDMA) makes third-generation wireless systems interference limited rather than noise limited. The research for new methods to reduce interference and increase efficiency led us to formulate a signaling method where fast impulsive silence states are mapped on zero-energy symbols. The theoretical formulation of the optimum receiver is reported and the asymptotic multiuser efficiency (AME) as well as an upper bound of the probability of error have been derived and applied to the conventional receiver and the decorrelating detector. Moreover, computer simulations have been performed to show the advantages of the proposed two-state scheme over the traditional single-state receiver in a multiuser CDMA system operating in a multipath fading channel.