导航

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2020, Vol. 41 ›› Issue (7): 323661-323661.doi: 10.7527/S1000-6893.2019.23661

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Congestion-minimization network update strategy for topology changes

LYU Na1, CHEN Kun1, CHEN Kefan2, ZHU Haifeng1, PAN Wu1   

  1. 1. College of Information and Navigation, Air Force Engineering University, Xi'an 710077, China;
    2. Unit 94860 of PLA, Nanjing 210000, China
  • Received:2019-11-18 Revised:2019-12-16 Online:2020-07-15 Published:2020-07-28
  • Supported by:
    National Natural Science Foundation of China (61703427)

Abstract: The emergence of software-defined networking has accelerated the development of airborne networks of aviation swarm, while also presenting challenges for their consistency update. To solve the failure problem of available paths during network update caused by topology changes, a congestion-minimization network update strategy for topology changes is proposed. Firstly, to reduce the packet loss caused by the failure of available paths, the rerouting mechanism is used for processing before the update. Then, for the network congestion caused by the rerouting mechanism, the greedy flow migration algorithm is designed to reduce the network congestion. Finally, the entire network update is completed by the instantaneous congestion minimization update algorithm. The simulation results show that compared with the traditional congestion consistency update algorithm, the update strategy proposed in this paper allows a small increase in the overhead of rules and instantaneous network congestion in exchange for a significant reduction in packet loss during network update.

Key words: aviation swarm, airborne networks, software-defined networking, network update, topology changes, capacity consistency

CLC Number: