Title :
Optimisation of soft interference cancellation for DS-CDMA
Author :
Renucci, P.G. ; Woerner, B.D.
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Mobile & Portable Radio Res. Group, Blacksburg, VA, USA
fDate :
4/16/1998 12:00:00 AM
Abstract :
CDMA interference cancellation engenders biased amplitude estimates of interference, hurting BER. The source of the bias is shown and amplitude estimates are recomputed with downscaled interference estimates. The mean and variance of the new metrics are determined and used to express BER. The optimal scaling factor minimising BER is derived for each interferer
Keywords :
cellular radio; code division multiple access; interference suppression; BER; DS-CDMA; biased amplitude estimates; downscaled interference estimates; optimal scaling factor; soft interference cancellation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980512
