Performance enhancement analysis for a DS-CDMA system

Author

Rizvi, Khurram A. ; Chow, Yuk C. ; Ismail, Mohamed

Author_Institution

Toshiba Res. Eur. Ltd., Bristol, UK

fYear

2004

fDate

20-22 Sept. 2004

Firstpage

56

Lastpage

60

Abstract

This paper has addressed the impact of different interference cancellation algorithms - sequential interference cancellation (SIC) and parallel interference cancellation (PIC) - for various data rates and channel profiles that mainly focuses on the evaluation of the performance improvements that accrue from cancelling the common pilot channel´s interference in terms of bit error rate performance for downlink applications of a CDMA system. With these advanced signal processing strategies pertaining to the frequency division duplexing (FDD) element of the UMTS terrestrial radio access network (UTRAN) specified by 3GPP, apriori knowledge of the cross-correlation properties of the spreading codes for interfering common signalling channels is utilised in reducing interference under time dispersive wireless channel conditions. Performance analysis, with its dependency on the quality of the channel estimate, emphasises the potentiality of these interference cancellation schemes and their robustness against channel estimation errors.

Keywords

3G mobile communication; channel estimation; code division multiple access; error statistics; frequency division multiplexing; interference suppression; radio access networks; radio links; radio receivers; signal processing; spread spectrum communication; telecommunication signalling; BER; DS-CDMA system; UMTS terrestrial radio access network; bit error rate; channel estimation; cross-correlation property; frequency division duplexing; interference cancellation algorithm; parallel interference cancellation; performance enhancement analysis; radio receiver; sequential interference cancellation; signal processing strategy; signalling channel; spreading code; time dispersive wireless channel; 3G mobile communication; Bit error rate; Downlink; Frequency conversion; Interference cancellation; Multiaccess communication; Performance analysis; Signal processing; Signal processing algorithms; Silicon carbide;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems, 2004, 1st International Symposium on

Print_ISBN

0-7803-8472-5

Type

conf

DOI

10.1109/ISWCS.2004.1407208

Filename

1407208