An Efficient Cache System to Minimize Network Contention in Mobile Ad Hoc Networks

This paper introduces a new caching system for Mobile Ad Hoc Networks (MANETs). In proposed method a cache consistency scheme for caching the database data in MANET is implemented, which enable the server to be aware of the cache distribution in the MANET, making the data items consistent with their version at the server and adapting the cache update process to the data rate at the server relative to the request rate by the clients. In this server- based scheme the queries that are submitted by requesting nodes are stored in special nodes, called query directories (QDs), and use these queries to locate the data (responses) that are stored in the nodes that requested them, called caching nodes (CNs). This system implements methods to handle disconnections of CN nodes from the network and to control how the cache of each node is updated or discarded when it returns to the network. So the overall design provides a complete caching system in which the server sends to the client’s selective updates that adapt to their needs this reduces wireless traffic in MANET.