Zero-Padded FDM-FDCP: Real-Time Signal Processing for Underwater Channels

Thomas Dean, Mainak Chowdhury, Andrea Goldsmith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We present an extension of the FDM-FDCP waveform and demonstrate the performance of this waveform in underwater acoustic channels in the presence of AWGN. In this extension, we simply replace the frequency-domain cyclic prefix with guard bands, analogous to zero-padded OFDM. We argue and provide empirical evidence for that this approach in fact improves performance. FDM-FDCP is designed to operate in low-delay, high-Doppler environments; we discuss maximum delay spread that our waveform can tolerate. All modulation and demodulation operations used in this work are accomplished in O(N N) time complexity, implying that FDM-FDCP is suitable for real-time signal processing in underwater channels.

Original languageEnglish (US)
Title of host publication2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781538635124
DOIs
StatePublished - Aug 24 2018
Externally publishedYes
Event19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018 - Kalamata, Greece
Duration: Jun 25 2018Jun 28 2018

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Volume2018-June

Conference

Conference19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
CountryGreece
CityKalamata
Period6/25/186/28/18

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

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