Differentiated service strategies for ad-hoc wireless sensor networks in harsh communication environments

  • Authors:

  • Jesse D. Thomason;Kenji Yoshigoe;R. B. Lenin;James M. Bridges;Srini Ramaswamy

  • Affiliations:

  • School of Arts and Sciences, University of Pittsburgh, Pittsburgh, USA 15260;Department of Computer Science, University of Arkansas at Little Rock, Little Rock, USA 72204;Department of Mathematics, University of Central Arkansas, Conway, USA 72035;College of Engineering, Missouri University of Science and Technology, Rolla, USA 65409;Industrial Software Systems, ABB Corporate Research, Bangalore, India 560048

  • Venue:
  • Wireless Networks
  • Year:
  • 2012

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Abstract

In some wireless sensor network applications, sensor nodes will be deployed in harsh communication environments. In such environments, the deployment may not be adequately controlled, and nodes may have to communicate with a single destination node. For nodes to alert the destination on critical data that has been sensed, in addition to the harsh communication environment, contention resulting from both the deployment and network density must be appropriately overcome. In this paper, we create theoretical models for the behavior of Timeout-MAC (T-MAC) protocol, and evaluate five possible solutions, each designed to be easy to implement on a device by simply tuning T-MAC parameters, so as to overcome these environment-specific issues and effectively alert the destination to critical data. Our results indicate that slight changes to the behavior of the network can improve the awareness of the destination to critical regions in the environment, and that these changes have different levels of effectiveness at different network densities.