International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Major applications of Wireless Sensor Networks (WSNs) are monitoring and tracking. The large numbers of sensors are deployed in remote and inaccessible places therefore deployment and maintenance should be easy and scalable. Sensors have limited battery backup as they are small in size. The energy is a critical factor in order to extend the lifetime of the network as nodes once deployed cannot be recharged as deployed in dangerous areas. Clustering or chain based techniques are generally used in WSNs in-order to reduce energy consumption of sensor nodes. In this paper, the authors discussed clustering based and chain based routing protocols for WSNs.