Title :
A new Doppler spread estimation algorithm based on zero crossings of the auto-correlation
Author :
Ali, Gassan Altag ; Manzoor, Shahid ; Jeoti, Varun
Author_Institution :
Electr. & Electron. Eng. Dept., Univ. Teknol. PETRONAS, Tronoh, Malaysia
Abstract :
The Doppler spread, or evenly, the mobile speed of motion, is an evaluation of the spectral spreading of mobile fading channel. A precise estimation of the mobile speed and/or velocity is of great significance in wireless mobile applications which needs the acquaintance of the rate of the channel variations. In this article we propose the use of the auto-correlation of the in-phase component of the received signal to estimate the maximum Doppler shift of the mobile communication system. The proposed algorithm relies on the zero crossing point of the auto-correlation function of the in-phase part of the received signal. A comparison between our proposed algorithm and the algorithm proposed by Tevfik Yucek in term of the Normalized Mean Square Error has been shown.
Keywords :
Doppler shift; channel estimation; correlation methods; fading channels; mean square error methods; mobile radio; spectral analysis; Doppler spread estimation algorithm; autocorrelation zero crossing point; channel variations; maximum Doppler shift estimation; mobile communication system; mobile fading channel; mobile speed; normalized mean square error; spectral spreading; Correlation; Doppler shift; Estimation; Mobile communication; OFDM; Signal to noise ratio;
Conference_Titel :
Intelligent and Advanced Systems (ICIAS), 2010 International Conference on
Conference_Location :
Kuala Lumpur, Malaysia
Print_ISBN :
978-1-4244-6623-8
DOI :
10.1109/ICIAS.2010.5716204
