On-Demand charging of wireless rechargeable sensor nodes using multiple mobile chargers.

What is it about?

In this paper, we utilize the benefits of partial charging and distributed control, and present a game theory-based distributed mobile charging protocol (DMCP) to recharge sensor nodes in wireless rechargeable sensor networks using multiple mobile chargers. In particular, we formulate the mobile charging problem as a series of repeated games played among the MCs and represent a game as a 0 − 1 integer linear programming to maximize the total profit of the MCs. In each game, the DMCP dynamically determines the factor of charging of the energy-deficit SNs based on their relative criticality and selects the next-to-be-recharged SNs using an efficient bi-objective payoff function. Besides, it utilizes an innovative strategy and a self-enforcing agreement to promote cooperation among the MCs for their long-term mutual benefits.

Featured Image

Photo by Rodion Kutsaev on Unsplash

Photo by Rodion Kutsaev on Unsplash

Why is it important?

The proposed DMCP reduces the charging delay up to 44.04% and enhances the charging coverage and survival rate up to 45.12% and 49.97%, respectively.