Telecommunications Science ›› 2019, Vol. 35 ›› Issue (7): 60-68.doi: 10.11959/j.issn.1000-0801.2019176

• Topic:5g • Previous Articles     Next Articles

Secure relay node selection method based on Q-learning for fog computing in 5G network

Shanshan TU1,2(),Jinliang YU1,2,Yuan MENG1,2,M WWAQAS3,Lei LIU4   

  1. 1 Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China
    2 Beijing Key Laboratory of Trusted Computing, Beijing 100124, China
    3 Department of Electronics and Engineering, Tsinghua University, Beijing 100084, China
    4 Beijing Electro-Mechanical Engineering Institute, Beijing 100074, China
  • Revised:2019-07-01 Online:2019-07-20 Published:2019-07-22
  • Supported by:
    The National Natural Science Foundation of China(61801008);The National Key Research and Development Program of China(2018YFB0803600);Beijing Natural Science Foundation(L172049);The Scientic Research Common Program of Beijing Municipal Commission of Education(KM201910005025)

Abstract:

A Q-learning-based optimal dual-relay node selection method was proposed. Firstly, a security fog computing structure model based on social awareness was constructed, and then an optimal dual-relay node selection method based on Q-learning algorithm was designed under this model, which achieved the selection of optimal dual-relay nodes in dynamic environment. Finally, the key generation rate, the selection speed of dual-relay nodes and the selection accuracy of dual-relay nodes in dynamic environment were analyzed. The experimental results show that the scheme can effectively select the optimal dual-relay nodes in dynamic environment, the algorithm converges rapidly to a stable level, and the selection speed of the optimal relay node is effectively improved.

Key words: Q-learning, fog computing, 5G network, social awareness, physical layer security

CLC Number: 

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