A novel adaptive two-stage detector for synchronous DS-CDMA communication systems

Author

Chen, Wanshi ; Do, Manh Anh

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

fYear

1997

fDate

2-4 Dec 1997

Firstpage

194

Lastpage

197

Abstract

A novel adaptive two-stage multiuser detector is proposed for synchronous DS-CDMA communication systems. This new multiuser detector employs the first-order approximate decorrelating detector as the first stage followed by an adaptive canceller. The steepest descent algorithm is used to control the weights of the adaptive canceller. Through analysis and numerical results, we show that the proposed detector results in a better error probability than that of the conventional detector and the decorrelating detector, especially when the multiple access interference (MAI) is high

Keywords

adaptive signal detection; adaptive signal processing; coding errors; correlation methods; interference suppression; land mobile radio; probability; pseudonoise codes; radiofrequency interference; spread spectrum communication; synchronisation; adaptive canceller; adaptive two-stage multiuser detector; error probability; first-order approximate decorrelating detector; mobile communication systems; multiple access interference; steepest descent algorithm; synchronous DS-CDMA communication systems; weights control; Amplitude estimation; Communication system control; Decorrelation; Detectors; Laboratories; Matched filters; Multiaccess communication; Multiple access interference; Timing; Weight control;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 1997. ISCE '97., Proceedings of 1997 IEEE International Symposium on

Print_ISBN

0-7803-4371-9

Type

conf

DOI

10.1109/ISCE.1997.658385

Filename

658385