SRADR: Network Status and Reputation Adaptive QoS Dynamic Routing for Satellite Networks

Abstract

Satellite network has the advantage of global coverage and simple access, so it is considered to be an important part of next generation Internet. In addition, the satellite network has the characteristics of high dynamic topology, limited node processing capacity and high security requirements. Therefore, it is different from the ground Internet. In this paper, we propose a network status and reputation adaptive QoS dynamic routing algorithm for satellite networks, which is called SRADR. It uses ant colony algorithm for routing discovery and dynamic update maintenance according to the network state and the reputation value of nodes as the basis, which makes the selected path a comprehensive performance state and a better security path. Based on the characteristics of the satellite network, the algorithm improves and optimizes the heuristic algorithm from the global perspective, so that the algorithm can adapt to the satellite network environment better. In the end, the performances of end-to-end QoS status and delay are evaluated by simulations.