Securing Cooperative Spectrum Sensing against DC-SSDF Attack Using Trust Fluctuation Clustering Analysis in Cognitive Radio Networks

Table 2

Key variables used in this paper.

Variables	Explanation
d	Final decision of FC
	Final decision of
	Number of true sensing of
	Number of false sensing of
	Trust value of at sensing time k
	Trust vector of
	Resonance frequency between and
	Similar distance between and
	Resonance frequency among cooperating SUs
	Resonance frequency of corresponding to the other cooperating SUs
	Attenuation penalty factor of at sensing time k