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Securing Cooperative Spectrum Sensing against Rational SSDF Attack in Cognitive Radio Networks
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  • Securing Cooperative Spectrum Sensing against Rational SSDF Attack in Cognitive Radio Networks
  • Securing Cooperative Spectrum Sensing against Rational SSDF Attack in Cognitive Radio Networks
저자명
Feng. Jingyu,Zhang. Yuqing,Lu. Guangyue,Zhang. Liang
간행물명
KSII Transactions on internet and information systems : TIIS
권/호정보
2014년|8권 1호|pp.1-17 (17 pages)
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한국인터넷정보학회
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정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Cooperative spectrum sensing (CSS) is considered as a powerful approach to improve the utilization of scarce radio spectrum resources. However, most of CSS schemes assume all secondary users (SU) are honest, and thus offering opportunities for malicious SUs to launch the spectrum sensing data falsification attack (SSDF attack). To combat such misbehaved behaviors, recent efforts have been made to trust schemes. In this paper, we argue that powering CSS with traditional trust schemes is not enough. The rational SSDF attack is found in this paper. Unlike the simple SSDF attack, rational SSDF attackers send out false sensing data on a small number of interested primary users (PUs) rather than all PUs. In this case, rational SSDF attackers can keep up high trustworthiness, resulting in difficultly detecting malicious SUs in the traditional trust schemes. Meanwhile, a defense scheme using a novel trust approach is proposed to counter rational SSDF attack. Simulation results show that this scheme can successfully reduce the power of rational SSDF, and thus ensure the performance of CSS.