A TDMA-based MAC protocol exploiting the near-far effect in underwater acoustic networks

Roee Diamant, Paolo Casari, Michele Zorzi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A prime source of collisions in underwater acoustic communication networks (UWANs) is the so called near-far effect, where a node located farther from the receiver is jammed by a closer node. While common practice considers such situation as a challenge, in this paper we consider it as a resource, and use it to increase network throughput of spatial reuse time-division multiple access. We propose a transmission allocation algorithm that opportunistically utilizes information on occurrences of near-far scenarios in UWANs to maximize channel utilization. Numerical results show that, at a slight cost in terms of fairness, our scheduling solutions achieve higher throughput and lower transmission delay than benchmark spatial-reuse scheduling protocols. To allow the reproducibility of our results, we publish the implementation of our proposed algorithm.

Original languageEnglish
Title of host publicationOCEANS 2016 - Shanghai
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467397247
StatePublished - 3 Jun 2016
EventOCEANS 2016 - Shanghai - Shanghai, China
Duration: 10 Apr 201613 Apr 2016

Publication series

NameOCEANS 2016 - Shanghai


ConferenceOCEANS 2016 - Shanghai

Bibliographical note

Publisher Copyright:
© 2016 IEEE.


  • Underwater acoustic networks
  • long propagation delay
  • near-far effect
  • optimization
  • spatial-reuse scheduling
  • time-division-multiple-access (TDMA)

ASJC Scopus subject areas

  • Oceanography
  • Automotive Engineering


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