Title :
WLCp1-17: A SNR Independent Doppler Shift Estimator Based on Iterative Process in Mobile Communication Systems
Author :
Jingyu, Hua ; Jin, Li ; Han, Hua ; Lan, Tang ; Xiaohu, You
Author_Institution :
Zhejiang provincial Key Lab. of Opt. Commun., Zhejiang Univ. of Technol., Hangzhou
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
In this paper, we propose a Doppler shift estimator based on the autocorrelation function (ACF) of the time-varying channel. In order to eliminate the effect of additive noise, we analyze the conditions for the estimator independent of the signal- to-noise ratio (SNR) and implement the conditions with a simple iterative process named as adaptive lag. The proposed method achieves good SNR-independent performance in wide range of velocities and SNRs.
Keywords :
Doppler shift; channel estimation; correlation methods; iterative methods; mobile radio; time-varying channels; wireless channels; SNR independent Doppler shift estimator; adaptive lag; autocorrelation function; iterative process; mobile communication systems; time-varying channel; Additive noise; Additive white noise; Autocorrelation; Doppler shift; Fading; Gaussian noise; Mobile communication; Rayleigh channels; Signal analysis; Signal processing;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.910
