Title :
An improved method for Doppler shift estimation in CP-SCBT Mobile Communication Systems
Author :
Jingyu, Hua ; Han, Hua ; Jin, Li ; Limin, Meng ; Xiaojian, Xu
Author_Institution :
Zhejiang Univ. of Technol., Hangzhou
Abstract :
In this paper, the Doppler shift of the time-varying multi-path channel is estimated by calculating the expectation of the ACF (auto-correlation function) of the channel coefficient estimates on the effective fingers. Furthermore we analyze the estimation bias and propose an improved estimation method based on SNR (signal-to-noise ratio) estimation to obtain the high estimation accuracy in wide ranges of velocities and SNRs.
Keywords :
Doppler shift; channel estimation; correlation methods; mobile communication; multipath channels; time-varying channels; CP-SCBT mobile communication systems; Doppler shift estimation; auto-correlation function; channel estimation method; cyclic prefix single carrier block transmission; signal-to-noise ratio estimation; time-varying multi-path channel; Autocorrelation; Doppler shift; Fading; Fingers; Frequency estimation; Gaussian noise; Mobile communication; Rayleigh channels; Signal analysis; Time division multiple access;
Conference_Titel :
Wireless and Mobile Communications, 2006. ICWMC '06. International Conference on
Conference_Location :
Bucharest
Print_ISBN :
0-7695-2629-2
Electronic_ISBN :
0-7695-2629-2
DOI :
10.1109/ICWMC.2006.24
