Network under limited energy: New technique for using limited number of mobile devices for charging and collecting data

Recently, the problem of using efficient limited number of mobile devices to go to charge and collect data of sensors such that sensors can work forever has received a great deal of attention in Wireless Rechargeable Sensor Network (WRSN). Many methods have been proposed for the WRSN systems such that mobile device can charge and collect data from sensors. However, most of previous works often require lots of mobile devices while the cost of mobile device is very high. In this paper, we propose a new algorithm, called the Mobile Device Traveling Algorithm (MDTA), to using limited number of mobile devices for charging and collecting data for sensors. Simulation results show that the MDTA has better performance than other method.