Reconfigurable routing protocol with optical sphere in FSO MANET

摘要

In Free Space Optic Mobile Ad hoc Networks (FSO MANET), during data transmission throughhierarchical routing protocol, the route failure may either occur if the node has expired due toenergy drain or if the node is not positioned with the succeeding hop node owing to mobility. Tocircumvent these obstacles, in this work, a cross layered reconfigurable protocol for routing withmultiple transceivers called as optical sphere inFSOMANETis developed in NS-2. In this protocol,the nodes are clustered, and the cluster head is selected using network source connector. If anyof the cluster member expire due to energy drain and if the alternate path is not available in therouting table, then the source will perform route reconfiguration to change the orientation andtransmission radius of the node resulting in direct transmission of packet to cluster head. Duringdata transmission through re-configured route, if the node interface is positionedwith respect tothe succeeding hop node, then the packet can be delivered.Otherwise, per-flow buffer algorithmis used for re alignment. Results simulated showthat the proposed protocol surpasses the existingworks in terms of delay, delivery ratio, and residual energy.