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Device-to-device (D2D) communication is a promising technology for wireless communication in the near future. Since D2D communication usually reuses the resource of cellular users, interference management is a key element. However, when secrecy capacity is taken into consideration, the interference caused by D2D communication could be taken advantage of as a kind of help against eavesdroppers. In this paper, we novelly introduce D2D communication into the problem of secrecy capacity, such that D2D pair could achieve its own transmission while the secrecy requirement of cellular communication is still satisfied. Moreover, we utilize secrecy outage probability to better depict the imperfect channel state information at the eavesdropper. We also derive the optimal transmission power and propose the access control mechanism.
Yue et al. (Thu,) studied this question.