Journal on Communications ›› 2018, Vol. 39 ›› Issue (10): 43-51.doi: 10.11959/j.issn.1000-436x.2018166

• Papers • Previous Articles     Next Articles

Real-time prediction and updating method for LEO satellite handover based on time evolving graph

Xin HU1,Hangyu SONG1(),Shuaijun LIU1,Xiuhua LI1,Weidong WANG1,Chunting WANG2   

  1. 1 School of Telecommunication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
    2 The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China
  • Revised:2018-07-09 Online:2018-10-01 Published:2018-11-23
  • Supported by:
    The National Natural Science Foundation of China(91438114)

Abstract:

In order to solve the problem of low handover efficiency raised by the interwined impacts of time-varying topology of LEO satellites and terminal movement,a real-time satellite handover prediction framework based on time evolving graph and a shortest path dynamic updating method was proposed.This framework dynamically updated the handover prediction results from the temporal and spatial dimensions according to the terminal movement.The simulation results show that the framework can effectively improve the accuracy of the forecast and avoid the unnecessary handover.

Key words: LEO satellite network, satellite handover, time evolving graph, shortest path dynamic updating method

CLC Number: 

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