Abstract:
Design criteria and analysis procedures for a practical OFDM underwater communications system are presented. A new broadband underwater channel model with Doppler time sc...Show MoreMetadata
Abstract:
Design criteria and analysis procedures for a practical OFDM underwater communications system are presented. A new broadband underwater channel model with Doppler time scaling effect is developed. A two-dimensional MMSE scheme using time and frequency pilots is employed for channel estimation. Doppler frequency shift is estimated using cyclic prefix and is compensated by a digital sampling rate conversion procedure. Numerical simulations demonstrate that the OFDM technique is robust with respect to frequency selectivity and time selectivity.
Published in: OCEANS 2000 MTS/IEEE Conference and Exhibition. Conference Proceedings (Cat. No.00CH37158)
Date of Conference: 11-14 September 2000
Date Added to IEEE Xplore: 06 August 2002
Print ISBN:0-7803-6551-8