Degree Centrality Based Divisive Clustered Routing for Link Efficient and Stale Route Elimination in MANET

Abstract

In the pandemic situation Mobile ad hoc networks are playing a crucial role in the networking system. Ad hoc networks render on-demand service to its user in various circumstances. When the mobile nodes are within the transmission range it communicates directly otherwise it follows the multi hop communication. Nodes on the network interconnect with each other to execute the process of routing. The method of determining an appropriate route to reach the destination is routing. Route paths are maintained in the routing table or route cache to achieve the data transmission.  Dynamic topology is the property of ad hoc network, due to this mobile node on the network moves at any direction at any instant of time.  Frequent changes on the network causes the variation on the transmission ranges which leads to broken links or link failures.  Failed links are associated with the active links on the route cache these links are called stale routes or old routes, which makes an inconsistency in the data transmission. So, Stale routes are creating a major problem on the network performance such as depicting an invalid path, delay and degradation of network performance.  Removing of stale route is the solution to improve the network efficiency. The proposed DCBCRL-SRE method concentrates on the cluster based route discovery and stable route selection to adopt the stale route elimination. Degree centrality procedure is used to adapt the route path with less number of hop counts. Link connectivity factor determines the stable path to carry the data transmission.   In order to boost the packet delivery ratio, reduce routing overhead, delay and packet drop rate the effective route was chosen based on the metrics such as less hop count, residual energy, link connectivity and receiving signal strength.