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Improvement and Performance Analysis of a Scheme for the Maximum Doppler Frequency Estimation

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3 Author(s)
Yi Sha ; Dept. of Commun. & Inf. Syst., Northeastern Univ., Shenyang ; Na Yao ; Xiaojing Xu

In this paper, an optimal signal-to-noise ratio (SNR) which is independent from correlation-interval and mobile speed is analyzed, which is on the basis of the channel auto-correlation Doppler shift estimation algorithm. And then an optimized SNR tracking (OSNRT) algorithm on the basis of Rake receiver under multi-path fading channel is proposed. The improved algorithm calculated Doppler shift by selecting a finger whose SNR is nearest to the optimal SNR. Simulation results show that contrasted to conventional schemes the proposed approach is less sensitive to correlation-interval and velocity varieties.

Published in:

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Date of Conference:

12-14 Oct. 2008

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