Managing Selfishness in Replica Allocation in MANET

Abstract

newlineA MANET is an infrastructure-less network with the self-configuring capability of mobile nodes connected wirelessly. Every node in a MANET acts as a router and communicates with each other. The mobility and resource constraints of mobile nodes may lead to network partitioning or performance degradation. The transmission of packets in an optimal route between source and destination is more complex due to its open and dynamic nature. Routing protocols designed for MANET expects all the nodes to cooperate in packet forwarding to establish communication between remote nodes using multi-hop communication. The routing in MANETs is vulnerable to various threats since the communication in the ad-hoc network depends on the cooperation of nodes for forwarding the packets. Mobile nodes share the data from various nodes collaboratively in MANET. newlineIn MANET there are several issues which attract the researcher to work in these areas. This research mainly deals with several issues: Firstly how to increase the availability of data by effective replica allocation? Secondly how to manage selfish node in replica allocation and how to improve the data security by malicious node detection? Finally network congestion in replica allocation? newlineData replication improves in data accessibility and system performance in distributed database systems. Data replication is coping of data from a database into one or more copies. Node misbehavior means deviation from the original routing and forwarding to save its resources to the maximum, thus impacting on the efficiency, reliability and the fairness in MANET. In a mobile ad-hoc network, some nodes may selfishly decide only to cooperate partially, or not at all, with other nodes. These selfish nodes could then reduce the overall data accessibility in the network along with an increase in query delay. However, some nodes may selfishly decide only to cooperate partially, or not at all, with other nodes.