Two-way relay underwater acoustic communication channels with distributed space-time block coding

Saed Daoud, Ali Ghrayeb, Bahattin Karakaya

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

Abstract

In this paper we study the performance of two-way relaying (TWR) over underwater acoustic (UWA) channels in conjunction with distributed space-time block coding (D-STBC). In particular, we consider the communication between two sources via relay nodes. The underlying channels are characterized as doubly selective channels. Orthogonal frequency division multIPlexing (OFDM) is used to combat frequency selectivity of the channels, while front-end multIPle resampling (MR) combined with frequency-domain equalization is used to combat intercarrier interference (ICI) resulting from time selectivity of the channel caused by the relative motion between the transceivers. Simulation results show the superiority of MR over its single resampling (SR) counterpart. Also, under total power constraint, AF-D-STBC (when only one source is activated at a time) outperforms AF-TWR-D-STBC, however, at the expense of less bandwidth efficiency. Also, AF-TWR-D-STBC outperforms AF-TWR (when one relay is activated) even though the former contributes more interference. Finally, to further boost the performance, successive interference cancellation (SIC) is used to extract the spatial diversity offered by the relays.

Original languageEnglish
Title of host publication2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages565-569
Number of pages5
Volume2015-June
ISBN (Electronic)9781479949120
DOIs
Publication statusPublished - 25 Jun 2015
Event2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014 - Washington, United States
Duration: 2 Sep 20145 Sep 2014

Other

Other2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
CountryUnited States
CityWashington
Period2/9/145/9/14

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Keywords

  • Amplify-and-forward (AF)
  • Doppler scaling
  • orthogonal frequency division multIPlexing (OFDM)
  • resampling

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Daoud, S., Ghrayeb, A., & Karakaya, B. (2015). Two-way relay underwater acoustic communication channels with distributed space-time block coding. In 2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014 (Vol. 2015-June, pp. 565-569). [7136229] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC.2014.7136229