A wireless sensor network is a collection of tiny nodes, which are deployed in the given environment to sense the events. The sensed events are transmitted to the base sensor through multi hop communication for the energy efficient purpose. Routing is an very important activity for WSN where source node transmits the information to destination node using multi hop communication. Due to the inherent characteristics of WSN, there exist frequent topology changes in WSN. Most of the existing routing protocols follow only static routing. In order to overcome the issues of existing system, a novel secure dynamic routing protocol is proposed, where the optimal route can be established even in case of topology change in WSN. The proposed protocol is implemented in NS3 simulation. This simulation results justifies that the proposed protocol will improve the energy consumption using routers and increases packet delivery ratio, throughput and reduces delay.
Sensors and Tracking Methods Used in Wireless Sensor Network Based Unmanned Search and Rescue System -A Review