Hierarchical VSCH and Cluster-Tree Routing Algorithms for Energy Efficient WSNs

Energy efficiency of a sensor node is one of the vital and key terms in the operation of Wireless Sensor Networks (WSNs). For developing an efficient network, data aggregation is done taking into consideration different routing algorithms and topologies. This paper develops hierarchical routing algorithms, Vicinity Search Closest Hop (VSCH) and Cluster-Tree which increases the energy efficiency of the network. These algorithms basically consider the node deployment, sink location, grouping of nodes, scheduling, and routing. Routing of data is done through various levels by multi hop technique and data is aggregated at every hierarchical level. Increased network lifetime is achieved with higher energy efficiency and low power consumption.