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In this paper, we aim to improve the physical layer security for Device-to-device (D2D) communication underlaying cellular networks by allocating interference power elegantly, and the security issues of both cellular users and D2D pairs are taken into consideration simultaneously. First of all, the two-level sequential Stackelberg game is introduced to solve the above problem via power allocation,...
Device-to-Device (D2D) communication has advantages of improving the spectral resource efficiency. But unfortunately, it brings about interference and potential secrecy hazard. In this paper, a Stackelberg game based power control algorithm is provided to enhance the physical layer security underlaying D2D communication by utilizing the interference. Then, a mathematical model based on Stackelberg...
In this paper, we investigate an inband cooperative device-to-device (D2D) communication system in cellular networks. Cellular users and D2D pairs help each other to improve their respective performance. Specifically, via coalition formation, cellular users release some of their spectrum to D2D pairs so as to start the communications of the D2D pairs; at the same time, D2D pairs help to relay the...
In this paper, we investigate jamming power allocation to improve physical layer security in a multiuser two-way relay network, where several communication pairs, one untrusted relay and one friendly jammer are involved. The untrusted relay helps these pairs to forward information and tries to eavesdrop simultaneously. In order to deteriorate the eavesdropping link and to improve physical layer security,...
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