Adaptive MMSE-MRC multiuser detector with mixed phase channel for DS-CDMA system

Author

Gajbhiye, Mangala R. ; Sathpathy, J.K.

Author_Institution

Electr. Eng. Dept., Nat. Inst. of Technol., Rourkela, India

fYear

2010

fDate

16-18 Dec. 2010

Firstpage

100

Lastpage

102

Abstract

Direct-sequence code-division multiple access (DSCDMA) is a popular multiple-access technology for wireless communication. However its performance is limited by multiple-access interference (MAI) and multipath distortion. Adaptive techniques for detection of DS-CDMA signals improves the performance of the CDMA system by reducing interference among users by employing two major types of adaptive technique called least mean squares (LMS) and recursive least square (RLS). In this paper the diversity scheme called maximum ratio combining (MRC) as preprocessor to the adaptive MMSE detector of DS-CDMA system in mixed phase channel is introduced.

Keywords

code division multiple access; diversity reception; least mean squares methods; multiuser detection; radiocommunication; radiofrequency interference; recursive estimation; spread spectrum communication; DS-CDMA signal detection; DS-CDMA system; DSCDMA; LMS; MAI; RLS; adaptive MMSE detector; adaptive MMSE-MRC multiuser detector; adaptive techniques; direct-sequence code-division multiple access; diversity scheme; least mean squares; maximum ratio combining; mixed phase channel; multipath distortion; multiple-access interference; multiple-access technology; preprocessor; recursive least square; wireless communication; Adaptive systems; Decorrelation; Detectors; Least squares approximation; Multiaccess communication; Multiuser detection; Receivers; Adaptive multi-user detection; DS-CDMA; maximum ratio combining (MRC); mixed phase channel;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Networks and Telecommunication Systems (ANTS), 2010 IEEE 4th International Symposium on

Conference_Location

Mumbai

ISSN

2153-1676

Print_ISBN

978-1-4244-9852-9

Type

conf

DOI

10.1109/ANTS.2010.5983505

Filename

5983505