Pilot-aided sequential monte carlo estimation of phase distortions and transmitted symbols in multicarrier systems

Authors:
François Septier;Yves Delignon;Atika Menhaj-Rivenq;Christelle Garnier
Affiliations:
Signal Processing Laboratory, Engineering Department, Cambridge University, Cambridge, UK;LAGIS UMR CNRS, TELECOM Lille1, Institut TELECOM, Villeneuve d'Ascq, France;IEMN-DOAE UMR, U.V.H.C., Valenciennes Cedex 9, France;LAGIS UMR CNRS, TELECOM Lille1, Institut TELECOM, Villeneuve d'Ascq, France
Venue:
Journal of Electrical and Computer Engineering
Year:
2010

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Abstract

We address the challenging problem of the joint estimation of transmitted symbols and phase distortions in standardized multicarrier systems, including pilot or virtual subcarriers. These subcarriers create time correlation on the useful transmitted OFDM signal that we propose to take into account by an autoregressive model. Because the phase distortions are nonlinear, we set the joint estimation algorithm on the framework of the Sequential Monte Carlo methods. Simulation results are provided in terms of bit error rate (BER) and mean square error (MSE); they highlight the efficiency and the robustness of the estimator.