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IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2010), Dallas : États-Unis (2010)
Joint channel and doppler estimation for multicarrier underwater communications
Alain Y. Kibangou 1, 2, Laurent Ros 2, Cyrille Siclet 2
(2010-03-19)

Underwater wireless communications are subject to multipath propagation and Doppler effects. In the receiver side, it is necessary to estimate both Doppler and channel parameters in order to compensate for their effects in the transmitted signal. In this paper, in the OFDM ( Orthogonal Frequency Division Multiplexing) context, we derive a new estimation scheme based on the resolution of two harmonic retrieval problems. Unlike standard methods, data resampling and estimation of residual carrier frequency offset are avoided. The efficiency of the proposed scheme is evaluated by means of simulations.
1:  NeCS (INRIA Grenoble Rhône-Alpes / Gipsa-lab)
CNRS : UMR5216 – INRIA – Gipsa-lab – Université Joseph Fourier - Grenoble I – Institut National Polytechnique de Grenoble (INPG)
2:  Grenoble Images Parole Signal Automatique (GIPSA-lab)
CNRS : UMR5216 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Université Stendhal - Grenoble III – Institut Polytechnique de Grenoble - Grenoble Institute of Technology
Computer Science/Signal and Image Processing

Engineering Sciences/Signal and Image processing