N. T. Duy, Tran Thi Thuy, Luong Thuy Chung, Ngo Tung Son, Tran Van Dinh
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DC programming and DCA for Secure Guarantee with Null Space Beamforming in Two-Way Relay Networks
In this paper, we consider a two-way relay network system which contains multiple cooperative relays transmitting information between two sources with attendance of an eavesdropper. A null space beamforming scheme is applied to ensure the secrecy in system. Our goal is achieving maximal secrecy sum rate with a certain level power transmit. In [1], authors propose an approach to solve Secrecy Sum Rate Maximization (SSRM) problem, whereas we use another approach based on Different of Convex Functions Algorithm (DCA).
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