Research on QoS Centralized Routing of Software-Defined Aeronautic Swarm Network

To address the problem of unstable data transmission caused by frequent topology changes in Aeronautic Swarm Network (ASNET), a centralized routing algorithm for Quality of Service(QoS) of the aeronautic swarm network based on Software Defined Network(SDN) is studied. First, this paper designs a Software Defined Aeronautic Swarm Network (SD-ASNET) model. Then, taking advantage of the SDN controller's ability to obtain global link-state information, we propose a Multiple Link-state Awareness routing (MLSA) based on the shortest path algorithm, taking into account link bandwidth, transmission delay and other factors. The simulation results show that the proposed centralized routing protocol makes full use of the centralized decision-making capability of the SDN controller, and effectively optimizes the link bandwidth utilization and transmission delay by using link parameter information. (paper)