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Journal of Sensors
Volume 2009, Article ID 491349, 11 pages
http://dx.doi.org/10.1155/2009/491349
Research Article

Nonuniform Grid-Based Coordinated Routing in Wireless Sensor Networks

1Department of Computer Science and Engineering, University of North Texas, 3490 N. Elm Street, Denton, TX 76207, USA
2Department of Electrical Engineering, Ecole de Technolgie Superieure, 1100 Notre Dame Ouest, Montreal, QC, Canada H3C 1K3

Received 29 April 2009; Accepted 16 August 2009

Academic Editor: Athanasios T. Vasilakos

Copyright © 2009 Robert Akl et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A nonuniform grid-based coordinated routing design in wireless sensor networks is presented. The conditions leading to network partition and analysis of energy consumption that prolongs the network lifetime are studied. We focus on implementing routing in densely populated sensor networks. By maintaining constant values for parameters such as path loss exponent, receiver sensitivity and transmit power, and varying between uniform and non-uniform grids, we observe energy consumption patterns for each of the grid structures and infer from the network lifetime the better suited grids for uniformly and randomly deployed sensor nodes.