Experiments on coherent multistage interference canceller for DS-CDMA mobile radio

Author

Sawahashi, M. ; Andoh, H. ; Higuchi, K. ; Adachi, F.

Author_Institution

Res. & Dev. Dept., NTT Mobile Commun. Div., Yokosuka, Japan

Volume

2

fYear

1998

fDate

8-11 Sep 1998

Firstpage

491

Abstract

A 3-stage coherent multistage interference canceller for DS-CDMA mobile radio was implemented and its performance in a frequency selective multipath fading channel is experimentally evaluated by using a multipath fading simulator. The implemented interference canceller applied pilot symbol-assisted channel estimation for data decision and replica generation of multiple access interference (MAI). The laboratory experiment demonstrated that, as is expected, the coherent multistage interference canceller can reduce the MAI to satisfactory levels in a multipath fading environment and thus, improving the bit error rate (BER) performance under multiuser environment

Keywords

code division multiple access; error statistics; fading channels; interference suppression; land mobile radio; multipath channels; radiofrequency interference; spread spectrum communication; 3-stage coherent multistage interference canceller; BER performance; DS-CDMA mobile radio; bit error rate; coherent multistage interference canceller; data decision; frequency selective multipath fading channel; multiple access interference; multiuser environment; pilot symbol-assisted channel estimation; replica generation; Bit error rate; Channel estimation; Decorrelation; Fading; Frequency; Interference cancellation; Land mobile radio; Multiaccess communication; Multiple access interference; Multiuser detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on

Conference_Location

Boston, MA

Print_ISBN

0-7803-4872-9

Type

conf

DOI

10.1109/PIMRC.1998.734247

Filename

734247