Title :
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
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;
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
DOI :
10.1109/ISSSTA.2006.311747
