Improved interference cancellation for downlink DCT-MC-CDMA systems

Author

Al-fuhaidi, B.A. ; Hassan, H.E.A. ; Salah, M.M.

Author_Institution

MTC, Cairo, Egypt

Volume

49

Issue

12

fYear

2013

fDate

June 6 2013

Firstpage

770

Lastpage

772

Abstract

The low complexity receiver structure based on discrete cosine transform for a downlink multicarrier code division multiple access (DCT-MC-CDMA) system is proposed. It employs an interference cancellation scheme with a linear equaliser to suppress the multiple access interference and interference caused by the multipath fading channel The performance of the proposed receivers is analysed and compared to the conventional downlink DFT-MC-CDMA system. Simulation results show a large performance improvement when using such an interference cancellation scheme relative to the DCT equalisation receiver, and interference cancellation for the downlink DFT-MC-CDMA system.

Keywords

code division multiple access; discrete cosine transforms; fading channels; interference suppression; multipath channels; receivers; DCT equalisation receiver; discrete cosine transform; downlink DCT-MC-CDMA systems; downlink DFT-MC-CDMA system; downlink multicarrier code division multiple access; interference cancellation scheme; linear equaliser; low complexity receiver structure; multipath fading channel; multiple access interference;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2012.4373

Filename

6550149