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IEICE TRANSACTIONS on Electronics

An Accurate Scheme for Channel Parameter Estimation in Mobile Propagations

Jingyu HUA, Limin MENG, Gang LI, Dongming WANG, Xiaohu YOU

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Summary :

In this letter, we first investigate the bias of Doppler shift estimator based on autocorrelation function (ACF). Then we derive a signal-to-noise ratio (SNR) independent condition for Doppler shift estimation and achieve this condition by a adaptive process. Moreover, we present theoretical analysis about the convergency of our adaptive Doppler shift estimator, and derive a close-form expression for its mean square error (MSE). We verify the proposed estimator by computer simulation, the results of which are in agreement with the analysis, i.e., the proposed method achieves a good SNR-independent performance in a wide range of velocities and SNRs.

Publication
IEICE TRANSACTIONS on Electronics Vol.E92-C No.1 pp.116-120
Publication Date
2009/01/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E92.C.116
Type of Manuscript
Special Section LETTER (Special Section on Recent Progress in Electromagnetic Theory and its Application)
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