Abstract: Wireless Sensor Networks (WSNs) are mainly powered by batteries. Due to limited energy storage capacity of a sensor battery, WSNs can usually remain operational only for a limited amount of time. To overcome this drawback joint mobile energy replenishment and data gathering is introduced. In the existing joint mobile energy replenishment and data gathering (JMRDG) static sink is used, SenCar after the completing the charging and data gathering of whole network it will to moved to forward the data to the static sink this will introduces delay in sink receiving the data. To overcome this drawback, we proposed a methodology against static sink. In the proposed method, sensor network is divided in to four sub areas. Each sub area has a SenCar to recharge each sensor node and also collect the data from that. At first SenCar identifies which node is in the urgent energy supplement then it will moved to charge that node at the same time it will collects the data from that particular node and moved to next node which needs the energy replenishment in the network so on. Finally all the nodes in the network are charged by SenCar means mobile sink collects the data from SenCars in each sub area. When we use mobile sink to gather the data from the SenCars data gathering delay is reduced. And also simulation result shows that energy dissipation, data loss and latency is less due to this proposed scheme.

Keywords: WSN, Mobile Sink, SenCar, Mobile Relays, Data Gathering, JMERDG and Delay.