Efficient Broadcasting in Mobile Ad Hoc Networks Using Context Aware Adaptive Routing Protocol during Network Partitions

Problem statement: In mobile ado network, broadcasting is a common operation for route establishment and for sending control and emergency messages. Reliable Broadcasting in mobile ad hoc networks requires delivery of messages from different sources to all the nodes of the network within bounded time. The nodes are highly mobile and the network is highly dynamic and decentralized. Most of the existing routing protocols in MANET have the assumption that a path exists between the sender and the receiver. But the decentralized mobile ad hoc network is characterized by frequent network partitions. Providing reliable broadcasting is a challenging task. Approach: In study, a new context aware adaptive routing protocol is designed for broadcasting. The protocol is based on the idea of exploiting nodes as carriers of messages among network partitions to achieve guaranteed delivery. The choice of the best carrier is made dynamically by using Kalman filter based prediction techniques and utility theory. Results: Simulation results show that the proposed protocol achieves better packet deliver ratio with reduced control overhead and packet loss during network partition. Conclusion: The proposed routing protocol chooses the carrier node dynamically based on the context information, it provides reliable broadcasting to all the nodes with minimum packet loss and control overhead.