Title :
On the tracking performance of LMS and RLS algorithms in an adaptive MMSE CDMA receiver
Author :
Lin, Pei ; Rapajic, Predrag ; Krusevac, Zarko
Author_Institution :
Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW
Abstract :
This paper provides some analytical and experimental results in comparing the non-stationary tracking characteristics of LMS and RLS in multi-user detection. It is shown that under slow fading conditions, the LMS algorithm outperforms the RLS algorithm. In both cases, only the Doppler shift of the user of interest, but not that of the interference, affects the tracking performances
Keywords :
Doppler shift; code division multiple access; fading; least mean squares methods; multiuser detection; radio receivers; radiofrequency interference; Doppler shift; LMS; RLS algorithms; adaptive MMSE CDMA receiver; multiuser detection; nonstationary tracking characteristics; tracking performance; Algorithm design and analysis; Content addressable storage; Fading; Interference elimination; Least squares approximation; Multiaccess communication; Performance analysis; Postal services; Rayleigh channels; Resonance light scattering; LMS; MMSE; RLS; Tracking performance; adaptive CDMA receiver;
Conference_Titel :
Communications Theory Workshop, 2005. Proceedings. 6th Australian
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-9007-5
DOI :
10.1109/AUSCTW.2005.1624247
