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A STUDY ON DATA REPLICATION TECHNIQUE IN MANET

A mobile ad-hoc network MANET is a self-configuring network of mobile nodes connected by wireless links. In MANET nodes move randomly and organize themselves. It allows mobile nodes to communicate directly without any centralized controller. Mobile nodes are move freely; therefore link and node failures are common. This leads to frequent network partition. While a network partition occurs, mobile nodes in one partition are not capable to access data hosted by nodes in other partitions. Hence it degrades the performance of data access. To address this issue, we apply data replication techniques. Our aim is to improve data availability and reduces query delay in MANET. There are number of data replication techniques have been proposed to increase data availability and reduce query delay in MANET. This paper is an effort to survey on existing data replication techniques.