Energy Conservation Hierarchical Cluster Based Routing Protocols For Heterogeneous Wireless Sensor Networks

The WSN is composed of a collection of sensor nodes, which are small energy constrained devices. In wireless sensor networks, the energy of nodes is limited. So designing efficient routing for reducing energy consumption is the important factor. This paper mainly focused on the routing problem in Wireless Sensor Networks and proposed three routing strategies named as CCB (Cluster and Chain Based), TRCB (Transmission Ranges and Chain Based), and GRAB (Gradient Based) routing. In this paper we performed these three routing schemes inside LEACH protocol. In CCB routing approach nodes send the information to the base station by using the concept of both LEACH and PEGASIS routing schemes. In TRCB routing approach nodes send the information to the base station by using its own transmission ranges and distance metrics. In GRAB routing approach nodes send the information to the base station based on cost field and credit. The simulation results shows that GRAB routing performed better inside LEACH protocol compared to CCB and TRCB routing approaches.