History-Aware Anticipated Route Maintenance in Mobile Ad Hoc Networks

In a mobile ad hoc network (MANET), for hosts that are not within each other's range, multi-hop routes must be established. Because of the node movement, the routes. can fail randomly. A host that was part of a route may move away from its upstream and downstream partners, thus breaking the route. The Anticipated Route Maintenance (ARM) protocol decreases the link failures and enforces route maintenance. The major drawback of the ARM is its control overhead. In this paper, we investigate methods to reduce the control overhead of ARM without compromising on other performance metrics. We use the History-Aware Multi-path Routing (HAMR) algorithm to enhance the ARM. We call the resulting protocol as History-Aware Anticipated Route Maintenance (HAARM) protocol. We compare its performance with the other protocols and observe that HAARM reduces the control overhead in ARM, keeping the other performance metrics intact.