Computer Science ›› 2022, Vol. 49 ›› Issue (11A): 211000080-8.doi: 10.11896/jsjkx.211000080

• Computer Networ • Previous Articles     Next Articles

SDN Oriented Mobile Network Reliability Evaluation Algorithm

BAO Chun-hui1, ZHUANG Yi1, GUO Li-ye2   

  1. 1 College of Computer Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China
    2 Shanghai Aerospace Electronic Technology Research Institute,Shanghai 201108,China
  • Online:2022-11-10 Published:2022-11-21
  • About author:BAO Chun-hui,born in 1997,postgra-duate.His main research interests include network reliability and trusted computing.
    ZHUANG Yi,born in 1956,professor,Ph.D supervisor,is a member of China Computer Federation.Her main research interests include trusted computing and formal methods.
  • Supported by:
    Aeronautical Science Foundation of China(2016ZC52030).

Abstract: Aiming at the problems that existing reliability evaluation algorithms can not be directly applied to software defined network(SDN),and it is difficult to reasonably set the expert weight in the traditional network reliability evaluation process,a SDN oriented mobile network reliability evaluation algorithm is proposed,a fine-grained expert weight adaptive adjustment me-thod is designed,and the network reliability evaluation process is given in detail.Firstly,the reliability of mobile network node equipment in SDN is evaluated,and the expert evaluation fuzzy number is introduced in the evaluation process to adaptively adjust the expert weight in a finer granularity.Secondly,according to the mobile network topology based on SDN,the critical importance of mobile network nodes is analyzed to measure the critical degree of different types of node devices in network function services,so as to calculate the impact of nodes on the overall reliability of the network.Finally,based on the above two results,the reliabi-lity of the whole network is analyzed and evaluated.The effectiveness of the proposed algorithm is verified by examples and simulation experiments.Compared with similar algorithms,the proposed algorithm can achieve higher evaluation accuracy.

Key words: Software defined network, Reliability assessment, Expert weight, Fuzzy number

CLC Number: 

  • TP393
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