Adaptive equalization techniques for interference suppression in shallow water acoustic telemetry channels

Published

Conference Paper

Despite the severe propagation conditions in shallow water acoustic telemetry channels, coherent high-speed data transmission may be established using adaptive receivers based on a decision feedback equalizer (DFE) structure. The performance of a DFE in shallow water acoustic networks is affected by substantial cochannel interference from acoustic modems, in addition to extended, time-varying ISI and large Doppler fluctuations. In this paper we address the interference suppression ability of a DFE by evaluating a channel-specific structure for reliable interference suppression and dynamic channel tracking. The DFE performance is compared to adaptive multiuser receiver which jointly performs adaptive equalization and multiple-access interference cancellation.

Duke Authors

Cited Authors

  • Zvonar, Z; Brady, D; Catipovic, J

Published Date

  • December 1, 1993

Published In

Volume / Issue

  • 2 /

Start / End Page

  • 1554 - 1558

International Standard Serial Number (ISSN)

  • 1058-6393

International Standard Book Number 10 (ISBN-10)

  • 0818641207

Citation Source

  • Scopus