Filter-based address autoconfiguration protocol (FAACP) for duplicate address detection and recovery in MANETs

Assigning unique addresses to the nodes in mobile ad-hoc networks is a challenging issue due to dynamic topology, resource constraint, network merging and partitioning. The existing address autoconfiguration protocols designed to provide unique addresses to the nodes, address one or two of the challenges like efficiency of duplicate detection, address space management, scalability etc. In this paper, a scheme addressing most of the issues challenging the autoconfiguration is presented. A filter-based address autoconfiguration protocol (FAACP) for duplicate address detection and recovery scheme has been proposed which use sequence filtering technique for address space management. The scheme present a grid structured network topology which manages the network merging and partitioning in effective manner. The specialized nodes called “Unique IP Address Verification Agents” are dynamically selected to improve the efficiency and reliability of distributed duplicate detection. The scheme uses significantly less number of control packets, and hence incurs less address acquisition delay and communication overhead. The FAACP scheme is simulated in Network Simulator-2 and has proven to be scalable without significant change in the performance. The scheme performs well inspite of the packet losses that occur due to high node mobility.