Interference suppression using de-correlating rake receiver in case of WCDMA

Author

Patel, Surabhi ; Patra, Sarat Kumar

Author_Institution

Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Rourkela, India

fYear

2013

fDate

25-26 March 2013

Firstpage

616

Lastpage

619

Abstract

Rake receivers are used for the detection of transmitted data in case of WCDMA communication systems due to its resistance to multipath fading. But rake receiver treat multiuser interference (MUI) as AWGN and have limitation in overcoming the effect of multiple access interference (MAI) when the SNR is high. A de-correlating matched filter has been used in this paper, which eliminates and improves system performance. Simulated results show a significant performance improvement for De-correlating RAKE receiver in terms of BER compared to a rake receiver. The performance of the de-correlating receiver for different spreading factor is also analysed.

Keywords

code division multiple access; decorrelation; error statistics; fading channels; interference suppression; matched filters; multipath channels; radio receivers; AWGN; BER; MAI; MUI; SNR; WCDMA communication systems; decorrelating rake receiver; interference suppression; matched filter; multipath fading; multiple access interference; multiuser interference; performance improvement; spreading factor; wideband code division multiple access; Channel estimation; Fading; Matched filters; Multiaccess communication; Multipath channels; Receivers; Signal to noise ratio; MMSE; WCDMA; de-correlating matched filter; rake receiver;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Trends in Computing, Communication and Nanotechnology (ICE-CCN), 2013 International Conference on

Conference_Location

Tirunelveli

Print_ISBN

978-1-4673-5037-2

Type

conf

DOI

10.1109/ICE-CCN.2013.6528573

Filename

6528573