@inproceedings{scholars902, note = {cited By 2; Conference of 2010 International Conference on Intelligent and Advanced Systems, ICIAS 2010 ; Conference Date: 15 June 2010 Through 17 June 2010; Conference Code:84196}, year = {2010}, doi = {10.1109/ICIAS.2010.5716204}, journal = {2010 International Conference on Intelligent and Advanced Systems, ICIAS 2010}, title = {A new Doppler spread estimation algorithm based on zero crossings of the auto-correlation}, address = {Kuala Lumpur}, isbn = {9781424466238}, author = {Ali, G. A. and Manzoor, S. and Jeoti, V.}, 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.}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952771354&doi=10.1109\%2fICIAS.2010.5716204&partnerID=40&md5=b59adac86c8ccae41d3afea6d54bbfde}, keywords = {Autocorrelation functions; Channel variations; Doppler shifts; Doppler spread; Doppler spread estimation; In-phase; In-phase components; Mobile applications; Mobile communication systems; Mobile fading channels; Normalized mean square error; Received signals; Speed of motion; Zero crossing points; Zero-crossings, Algorithms; Communication systems; Estimation; Fading (radio); Fading channels; Radio broadcasting, Mobile telecommunication systems} }