A dual mode detector using interference cancellation method for DS-CDMA systems

Author

Agarwal, R. ; Reddy, B.V.R. ; Aggarwal, K.K.

fYear

2005

fDate

23-25 Jan. 2005

Firstpage

263

Lastpage

266

Abstract

A dual mode multiuser detector is proposed. It dynamically switches its detection mode between matched filter and successive interference cancellation (SIC) detector, based on the channel characteristics. The main criterion of choosing the SIC detector is that it has minimum bit error rate (BER) among all nonlinear multiuser detectors. This detector reduces overall complexity while maintaining the same performance as the SIC detector. The switching mechanism is exploited by a performance-complexity tradeoff between the matched filter detector and SIC detector.

Keywords

code division multiple access; computational complexity; error statistics; interference suppression; matched filters; multiuser detection; radiofrequency interference; spread spectrum communication; DS-CDMA; SIC detector; dual mode detector; matched filter detector; minimum BER; minimum bit error rate; nonlinear multiuser detector; performance-complexity tradeoff; successive interference cancellation detector; Bit error rate; Detectors; Direct-sequence code-division multiple access; Interference cancellation; Matched filters; Multiaccess communication; Multiple access interference; Signal to noise ratio; Silicon carbide; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal Wireless Communications, 2005. ICPWC 2005. 2005 IEEE International Conference on

Print_ISBN

0-7803-8964-6

Type

conf

DOI

10.1109/ICPWC.2005.1431345

Filename

1431345