ROAL: A Randomly Ordered Activation and Layering Protocol for Ensuring K-Coverage in Wireless Sensor Networks

  • Authors:
  • Hogil Kim;Eun Jung Kim;Ki Hwan Yum

  • Affiliations:
  • Texas A&M University, USA;Texas A&M University, USA;University of Texas at San Antonio, USA

  • Venue:
  • ICWMC '07 Proceedings of the Third International Conference on Wireless and Mobile Communications
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

K-coverage in wireless sensor networks (WSNs) is defined as ensuring that every point in the area is monitored by at least K different sensor nodes. In this paper, we propose a new K-coverage algorithm for sensor networks, called Randomly Ordered Activation and Layering (ROAL), that solves the K-coverage problem in a small constant time in a distributed manner while providing simple and efficient dynamic reconfiguration for the WSNs. The simulation results show that the ROAL can guarantee K-coverage with the uncovered area less than 5% when a sufficient number of sensor nodes are provided, and that the lifetime of the sensor network is significantly extended by more than 400%.