Title :
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
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;
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
DOI :
10.1109/PIMRC.1998.734247
