Two-hop wireless network serves as the basic net-work model for the study ofgeneral wireless networks, while cooperative jamming is a promising scheme toachieve the physi-cal layer security. This paper establishes a theoreticalframework for the study of eavesdropper-tolerance capability (i.e., the exactmaximum number of eavesdroppers that can be tolerated) in a two-hop wirelessnetwork, where the cooperative jamming is adopted to ensure security defined bysecrecy outage probability (SOP) and opportunistic relaying is adopted toguarantee relia-bility defined by transmission outage probability (TOP). Forthe concerned network, closed form modeling for both SOP and TOP is firstconducted based on the Central Limit Theorem. With the help of SOP and TOPmodels and also the Stochastic Ordering Theory, the model foreavesdropper-tolerance capability analysis is then developed. Finally,extensive simulation and numerical results are provided to illustrate theefficiency of our theoretical framework as well as the eavesdropper-tolerancecapability of the concerned network from adopting cooperative jamming andopportunistic relaying.
展开▼
