Improving Network Energy Consumption Using Novel Proposed Geographic Routing with Mobile Sink in WSNs

Recent advances in energy harvesting technology cause Wireless Sensor Networks (WSNs) to be one of the most common communications in different fields. In this paper, a new and appropriate solution based on geographic routing in WSNs with mobile stations is presented to decrease the number of routings and ultimately reduce the usage of energy in the network. In the proposed method named Geographic Routing with the Mobile Sink (GRMS), in the process of selecting the Cluster Head (CH) element, each node that is selected as the CH announces its new role to the other network nodes. By announcing this information, other nodes are also connected to the cluster. In each cluster, the CH creates and broadcasts a schedule in the cluster that contains the time slots assigned to each cluster member. The proposed GRMS method is compared with GEAR, GAF, and GMR methods. The simulation results show that the GRMS has reduced energy consumption compared to GEAR, GAF, and GMR methods. Also, the end-to-end delay in packet delivery has decreased and the number of dead nodes has decreased