Abstract：In order to solve the problem of intercellular eavesdropping in Device to Device (D2D) communication, an anti-eavesdropping security transmission scheme based on artificial noise-aided Time-Reversal (TR) is proposed in this thesis. Firstly, This thesis proposes a method to eliminate the interference between cells under the cross-cell channel model. Secondly, the ability of eavesdropping users to steal information is deteriorated by sending artificial noise to the base station to assist TR technology. Finally, in order to meet the needs of cellular users for quality of service and maximize the system traversal secrecy rate, the power control allocation scheme with convex optimization is adopted to maximize the transmitted power of D2D users. Through simulation experiment analysis, compared with the artificial noise scheme, this method improves the accessibility confidentiality rate of 0.8 bps/HZ under the same signal-to-noise ratio(SNR). In addition, with the increase of the number of neighboring cells, the scheme in this thesis has a more obvious improvement on the Reachable security rate.
