Joint channel and Doppler estimation for multicarrier underwater communications

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 Divi...

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Bibliographic Details
Published in2010 IEEE International Conference on Acoustics, Speech and Signal Processing pp. 5630 - 5633
Main Authors Kibangou, A Y, Siclet, C, Ros, L
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2010
Subjects
Bandwidth
Communication system control
Control systems
Delay estimation
Doppler distortion
Frequency estimation
Hankel matrix
OFDM
Signal resolution
Total least squares
Underwater acoustic communications
Underwater acoustics
Underwater communication
Vandermonde decomposition
Wireless communication
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Summary: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.
ISBN:9781424442959
1424442958
ISSN:1520-6149
DOI:10.1109/ICASSP.2010.5495258