Robust Cooperative Spectrum Sensing under Primary User Emulation Attack in Cognitive Radio Networks
عنوان مقاله: Robust Cooperative Spectrum Sensing under Primary User Emulation Attack in Cognitive Radio Networks
شناسه ملی مقاله: JR_JCSE-2-2_002
منتشر شده در در سال 1394
شناسه ملی مقاله: JR_JCSE-2-2_002
منتشر شده در در سال 1394
مشخصات نویسندگان مقاله:
Abbas Ali Sharifi - University of Tabriz
Mir Javad Musevi Niya - University of Tabriz
خلاصه مقاله:
Abbas Ali Sharifi - University of Tabriz
Mir Javad Musevi Niya - University of Tabriz
Cooperative Spectrum Sensing (CSS) is an effective approach to improve the detection performance of vacant frequency bands in Cognitive Radio (CR) networks. The CSS process imposes some security threats to the CR networks. One of these common threats is Primary User Emulation Attack (PUEA). In PUEA, some malicious users try to mimic primary signal characteristics and deceive CR users to prevent them from accessing the vacant frequency bands. The present study introduces a new CSS scheme, in the presence of a malicious PUEA, called Attack-aware CSS (ACSS). The idea is based on the estimation of attack parameters including probabilities of the fake PUEA signals’ presence in both occupied and unoccupied frequency bands. The obtained parameters are innovatively applied in Neyman-Pearson (N-P) or Log-Likelihood Ratio Test (LLRT) to improve collaborative sensing performance. Simulation results verify the performance improvement of the proposed method against PUEA compared with conventional method.
کلمات کلیدی: Attack Parameters, Cognitive Radio, Spectrum Sensing, Primary User Emulation Attack
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1366357/