An Energy Efficient Self-healing Mechanism for Long Life Wireless Sensor Networks

Abstract

In this paper, we provide an energy efficient selfhealing mechanism for Wireless Sensor Networks. The proposed solution is based on our probabilistic sentinel scheme. To reduce energy consumption while maintaining good connectivity between sentinel nodes, we compose our solution on two main concepts, node adaptation and link adaptation. The first algorithm uses node adaptation technique and permits to distributively schedule nodes activities and select a minimum subset of active nodes (sentry) to monitor the interest region. And secondly, we in-troduce a link control algorithm to ensure better connectiv-ity between sentinel nodes while avoiding outliers appearance. Without increasing control messages overhead, performances evaluations show that our solution is scalable with a steady energy consumption. Simulations carried out also show that the proposed mechanism ensures good connectivity between sentry nodes while considerably reducing the total energy spent.

CHEAP: An Efficient Localized Area Coverage Maintenance Protocol for Wireless Sensor Networks

“…Solutions commonly proposed can be classified into redundancy, motility, and mobility based approaches. Diongue and Thiare [34] proposed to maintain active some nodes (sentinels) so that they watch over their sleeping neighbors. This strategy combines node-based and link-based adaptation schemes.…”

“…In order to evaluate each protocol's ability to maximize network resilience denoted by φ, we propose to aggregate the metrics discussed above using a weighted geometric mean as expressed by Equation (34). Let τ m , l s , τ g , τ e , and ε respectively be the average mobilization ratio, the average elasticity, the migration ratio, the average elimination ratio, and the average energy consumption ratio.…”

Mobile Sink Based Data Assemblage in Wireless Sensor Networks

“…It also deals with solving the ILP model by using a typical public-domain resolver and presents a divide-and defeat approach for resolving huge problem instances field. It also dealt about the grid-based sensor positioning for solitary targets provides asymptotically unambiguous position of many targets [6]. In [7] the authors provide an energy efficient self-healing mechanism for WSN.…”