Parameter study of OFDM underwater communications system

Byung Chul Kim, I. Tai Lu

Research output: Contribution to journalArticle

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 OFDM technique is robust with respect to frequency selectivity and time selectivity.

Original languageEnglish (US)
Pages (from-to)1251-1255
Number of pages5
JournalOceans Conference Record (IEEE)
Volume2
DOIs
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Oceanography

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