Open Access

Performance Evaluation of a Novel CDMA Detection Technique: The Two-State Approach

EURASIP Journal on Advances in Signal Processing20052005:562629

https://doi.org/10.1155/ASP.2005.658

Received: 1 August 2003

Published: 20 April 2005

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 lead 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.

Keywords and phrases

code division multiple accesscommunication signal theorywireless communicationsimpulsive information sources

Authors’ Affiliations

(1)
Department of Electronics and Telecommunications (DET), University of Florence
(2)
CNIT Florence Unit, University of Florence

Copyright

© Del Re et al. 2005