An Assurance Enhanced Route-Split Routing for Non-uniform Node Density in Mobile Ad Hoc Networks

Assurance network technologies are necessary to realize trustable terminal/infrastructure service applications. Heterogeneous requirements are independently generated for assurance networks. In real situations, nodes are not uniformly distributed in networks, and it is assumed that there are dense and sparse areas. This difference of node densities will be serious in the large scale networks. When flooding is conducted in a dense area, network congestion occurs and nodes cannot communicate each other. So far, Route-Split Routing (RSR) has been proposed, and RSR can communicate with higher throughput than AODV in large MANETs. In large MANETs, nodes would be distributed non-uniformly. Thus, routing protocols for large MANETs must consider that its route can pass through sparse areas and dense areas. In this paper, we propose a new routing method based on RSR for non-uniformly node distributed large MANETs. We have implemented our proposed method into a simulator and evaluated it through simulation experiments. We have observed our proposed method is effective in nonuniformly node distributed large MANETs.