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SCIENTIA SINICA Informationis, Volume 48, Issue 3: 349-358(2018) https://doi.org/10.1360/N112016-00243

Evaluation and improvement of LCR-DSR channel parameter estimator in mobile communications

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  • ReceivedMar 31, 2017
  • AcceptedNov 13, 2017
  • PublishedFeb 7, 2018

Abstract

Evaluation and improvement of LCR-DSR channel parameter estimator in mobile communicationsThis paper presents a comprehensive investigation on the optimization of a joint estimator employing the double sampling rate (DSR) technique, in which the Doppler shift estimation based on the level crossing rate (LCR) has been evaluated analytically in terms of the mean square error (MSE). Subsequently, the relationship between the MSE and the channel sampling interval is presented for optimization. Finally, the optimal channel sampling interval is obtained as well as an improved performance of the signal-to-noise ratio (SNR) and Doppler shift estimation. Sufficient simulations demonstrate a good performance for the proposed algorithm.


Funded by

国家自然科学基金(61471322)


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