A Double Reference Nodes Based Resilience Topology Management for Energy-Efficient FANET

In a Flying Ad-hoc Network (FANET), the resilience of a network is defined as the ability to rebound from a threat event. The bi-connectivity of topology which can keep the network connected after a single unmanned aerial vehicle (UAV) fails, is an important feature of resilience. Due to the high dynamic and the limited node energy of FANET, it is difficult to generate and maintain the bi-connectivity. In this paper, in order to enhance network resilience, we proposed a distributed energy-efficient bi-connectivity generation and restoration mechanism based on double reference nodes (DEBGR-DRN) through adjusting UAV's transmission power. Our algorithm can save the transmission power and communication cost by selecting the shortest edge to be added and limiting the path length. NS3 network simulations demonstrate the validity of the proposed algorithm.