Multi-modal communications in underwater sensor networks using depth adjustment

Michael O'Rourke, Elizabeth Basha, Carrick Detweiler

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

29 Scopus citations

Abstract

Acoustic communication typically dominates the power usage in underwater sensor networks. As networks underwater have very limited recharging capabilities, this challenges the network's ability to communicate collected data. To balance these conflicting needs, we utilize a sensor network platform with underwater acoustic communication, surface level radio communication, and a depth adjustment system to switch between them. Nodes determine if they should surface to communicate by approximating the network energy usage and data latency given the data transmission size. For a given path, we develop and examine a set of algorithms to select the nodes to rise to communicate the data via radio across the network while taking energy usage into account. We perform a preliminary analysis of the methods and show that for typical networks greedy approaches are nearly as good as centralized approaches, yet require minimal communication overhead and only local information.

Original languageEnglish (US)
Title of host publicationProceedings of the 7th ACM International Conference on Underwater Networks and Systems, WUWNet 2012
DOIs
StatePublished - 2012
Event7th ACM International Conference on Underwater Networks and Systems, WUWNet 2012 - Los Angeles, CA, United States
Duration: Nov 5 2012Nov 6 2012

Publication series

NameProceedings of the 7th ACM International Conference on Underwater Networks and Systems, WUWNet 2012

Conference

Conference7th ACM International Conference on Underwater Networks and Systems, WUWNet 2012
Country/TerritoryUnited States
CityLos Angeles, CA
Period11/5/1211/6/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems

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