Threshold based dynamic source routing in mobile ad hoc networks

Mobile Adhoc NETwork (MANET) is a collection of wireless mobile nodes that can dynamically form a network. This definition implies that there is no permanent topology, centralized administration and standard support services. Due to the characteristics of MANET, the movement of node is uncertain. It may cause links to break and the low battery life in nodes may cause nodes to fail. Each node is responsible for routing information among them and hence it act as a node and router. In on demand routing protocols all nodes when they learn or use routes, store the routes to the destinations in a routing table or a cache. The threshold based cache routing is proposed based on the information system of rough set theory for better routing. It is potentially useful to study the application of Information systems in cache-based routing protocols.