Netinfo Security ›› 2018, Vol. 18 ›› Issue (10): 37-44.doi: 10.3969/j.issn.1671-1122.2018.10.006

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Research on a Trusted Collaborative Second Users Selection Strategy in Distributed Cognitive Radio Networks

Xuli RAO1,2, Hui LIN1(), Youliang TIAN3, Li XU1   

  1. 1.Laboratory of Network Security and Cryptography, Fujian Normal University, Fuzhou Fujian 350007,China
    2. Department of Computer, Fuzhou Polytechnic, Fuzhou Fujian 350108, China
    3. Guizhou Provincial Key Laboratory of Public Big Data, Guiyang Guizhou 550025, China
  • Received:2018-07-05 Online:2018-10-10 Published:2020-05-11

Abstract:

Collaborative spectrum sensing can effectively optimize the spectrum sensing results in the distributed cognitive radio networks (DCRN). However, the collaborative spectrum sensing also brings some security threats, especially the threats from the malicious collaborative second users’ attacks. To resolve the above problems, this paper proposes a trustworthy spectrum sensing collaborative second user selection strategy (RMCSS) based on integrated reputation mechanism and metagragh. The strategy combines the reputation evaluation results of second users with the metagraph theory, takes the reputation values as the main parameters to calculate the relationship between second users in the metagraph, establishes the trust relationship between different second users, and selects the trusted second users.Simulation experiments and results analysis show that the proposed strategy can effectively improve the credibility of the selected second users, thereby improving the ability to resist spectrum sensing data tampering attacks and channel detection rate.

Key words: distributed cognitive radio networks, collaborative spectrum sensing, metagraph, reputation mechanism, second user

CLC Number: