Multiuser Decorrelating Detectors for DS-CDMA on Frequency-Selective Fading Channels

Author

Cifuentes, Gonzalo Olmedo ; de Almeida, Celso

Author_Institution

Dept. of Commun., State Univ. of Campinas

fYear

2006

fDate

28-31 Aug. 2006

Firstpage

123

Lastpage

127

Abstract

In this article two multiuser receivers for DS-CDMA systems on frequency-selective fading channels are analyzed and compared: the rake decorrelating detector (RDD) and the multipath decorrelating detector (MDD). Simple and precise expressions for the bit error probability and for the computational complexity for synchronous and asynchronous DS-CDMA cases are obtained. The analytic and simulations results have shown that the RDD detector achieves better performance than the MDD detector, with much lower computational complexity

Keywords

code division multiple access; computational complexity; decorrelation; error statistics; fading channels; multiuser detection; spread spectrum communication; DS-CDMA system; RDD; bit error probability; computational complexity; direct sequence code division multiple access; frequency-selective fading channel; multiuser receivers; rake decorrelating detector; Analytical models; Computational complexity; Computational modeling; Decorrelation; Detectors; Error probability; Frequency-selective fading channels; Multiaccess communication; Performance analysis; RAKE receivers; DS-CDMA; Decorrelating Multiuser Detection; Frequency-Selective Channel; MDD; MUD; RAKE; RDD;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2006 IEEE Ninth International Symposium on

Conference_Location

Manaus-Amazon

Print_ISBN

0-7803-9779-7

Electronic_ISBN

0-7803-9780-0

Type

conf

DOI

10.1109/ISSSTA.2006.311747

Filename

4100536