Journal of Xidian University ›› 2020, Vol. 47 ›› Issue (1): 66-72.doi: 10.19665/j.issn1001-2400.2020.01.010

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Environmentally-adaptive secure routing protocol for satellite networks

BI Mengge1,2,JU Yu1,2,HOU Ronghui1,2   

  1. 1. School of Cyber Engineering, Xidian Univ., Xi’an 710071, China
    2. Science and Technology on Communication Network Laboratory, The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang 050081, China
  • Received:2019-07-04 Online:2020-02-20 Published:2020-03-19

Abstract:

In order to solve the security problem of data transmission in Low Earth Orbit(LEO) satellite networks, a novel secure routing protocol is designed. First, by considering two aspects of satellite behavior attribute and communication capability attribute, a multi-dimensional security evaluation model is established, and the model for evaluating the satellite security communication capability is dynamically adjusted with the network state. Then, combined with the on-demand routing protocol, the secure communication path is established by taking the quantitative evaluation of satellite security communication capability as the routing metric. Finally the forwarding behavior of nodes in the transmission path is monitored in real time, and the routing reconstruction is triggered as needed. Simulation results show that, compared with the existing protocol, the proposed protocol can significantly improve the performance of the packet delivery rate, average end-to-end delay and average hop than the existing protocol when malicious nodes exist in the network. The protocol can effectively improve the security of data transmission in LEO satellite networks.

Key words: satellite network, secure routing, secure assessment, analytic hierarchy process

CLC Number: 

  • TN927