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EM-Based channel estimation in OFDM systems with phase noise

Abstract:

In this paper we address the joint estimation of phase noise (PHN) and channel impulse response (CIR) in orthogonal frequency division multiplexing (OFDM) systems. We solve the estimation problem utilizing an algorithm based on a Monte Carlo (MC) implementation of the Expectation-Maximization (EM) algorithm. Our approach exploits the linear and Gaussian structure associated with the transmitted signal. We also focus on the impact that inaccurate estimation of PHN bandwidth has on the accuracy of the channel estimates. We show the benefits of the proposed algorithm via simulation studies. © 2011 IEEE.

Año de publicación:

2011

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Conference Object

    Estado:

    Acceso restringido

    Áreas de conocimiento:

    • Comunicación
    • Comunicación

    Áreas temáticas:

    • Física aplicada

    Contribuidores:

    Godoy B.I.Godoy B.I.
    Juan C. AgüeroJuan C. Agüero
    Carvajal R.Carvajal R.
    Goodwin G.C.Goodwin G.C.