EM-Based channel estimation in OFDM systems with phase noise

Rodrigo Carvajal, Juan C. Agüero, Boris I. Godoy, Graham C. Goodwin

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

4 Citas (Scopus)

Resumen

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.

Idioma originalInglés
Título de la publicación alojada2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
DOI
EstadoPublicada - 2011
Publicado de forma externa
Evento54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 - Houston, TX, Estados Unidos
Duración: 5 dic. 20119 dic. 2011

Serie de la publicación

NombreGLOBECOM - IEEE Global Telecommunications Conference

Conferencia

Conferencia54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
País/TerritorioEstados Unidos
CiudadHouston, TX
Período5/12/119/12/11

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