Title :
A fast convergent scheme for the Doppler shift estimation in mobile communication systems
Author :
Jing-yu, Hua ; Xiao-hu, You ; Bin, Sheng ; Martin, Weckerle ; Egon, Schulz
Author_Institution :
Nat. Commun. Res. Lab., Southeast Univ., Nanjing, China
fDate :
28 June-1 July 2004
Abstract :
The Doppler shift of the time-varying multi-path channel is estimated by calculating the level crossing rate (LCR) of the signal envelope of the channel coefficient estimates of the strongest path. In order to reduce long observation duration and memory requirements, we recommend to use the 1st order autoregressive (AR(1)) filter. Simulation results show the fast convergence of the proposed algorithm while guaranteeing the estimating accuracy at the same time.
Keywords :
Doppler shift; Monte Carlo methods; Rayleigh channels; autoregressive processes; channel estimation; mobile communication; multipath channels; 1st order autoregressive filter; Doppler shift estimation; fast convergent scheme; level crossing rate; mobile communication systems; time-varying multipath channel; 3G mobile communication; Channel estimation; Convergence; Doppler shift; Fading; Filters; Gaussian noise; Mobile communication; Signal to noise ratio; Time varying systems;
Conference_Titel :
Computers and Communications, 2004. Proceedings. ISCC 2004. Ninth International Symposium on
Print_ISBN :
0-7803-8623-X
DOI :
10.1109/ISCC.2004.1358616
