Cluster Based Cooperative Caching Technique in Mobile Ad Hoc Networks
One of the most attractive techniques used to improve the data retrieval performance in wireless mobile environment is caching. In Mobile Ad hoc NETworks (MANETs), updating of cached data item needs to be done frequently due to the high mobility of the nodes. This leads to additional overhead and delay. In this paper, the authors propose to develop a cluster based cooperative caching technique based on mobility prediction to handle mobile disconnections and to reduce the overhead. The network is divided into clusters and the selection of cluster head is done based on the power level and connectivity. The details of the cached data items in the cluster and its adjacent clusters are maintained in the Local Cache Table (LCT) and the Global Cache Table (GCT).