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Estimation of the Ricean K Factor in the presence of shadowing

Xavier Leturc 1 Philippe Ciblat 2 Christophe J. Le Martret 3
1 LTCI - Laboratoire Traitement et Communication de l'Information
2 COMNUM - Communications Numériques
LTCI - Laboratoire Traitement et Communication de l'Information
3 Thales Communications [Gennevilliers]
Abstract : We address the estimation of the Ricean K factor when the available complex channel samples are noisy and subject to Nakagami-m shadowing, i.e., the line-of-sight component is modeled as a Nakagami-m random variable. We propose two estimators: one based on the expectation-maximization (EM) procedure, and a second one based on the method of moment (MoM). The MoM estimator can be used to initialize the EM procedure. We show by simulations that the two proposed estimators outperform the existing ones.
Keywords : Channel Estimation Ricean Shadowing Channel
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https://hal.telecom-paris.fr/hal-02916098
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Submitted on : Tuesday, August 18, 2020 - 9:11:49 AM
Last modification on : Wednesday, September 30, 2020 - 8:54:13 AM

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Xavier Leturc, Philippe Ciblat, Christophe J. Le Martret. Estimation of the Ricean K Factor in the presence of shadowing. IEEE Communications Letters, Institute of Electrical and Electronics Engineers, 2020, 24 (1), pp.108-112. ⟨10.1109/LCOMM.2019.2950027⟩. ⟨hal-02916098⟩

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