Joint Relay and Jammer Selection for Secure Two-Way Relay Networks
作者： Jingchao Chen , Rongqing Zhang , Lingyang Song , Zhu Han , Bingli Jiao
DOI: 10.1109/TIFS.2011.2166386
关键词:
摘要: In this paper, we investigate joint relay and jammer selection in two-way cooperative networks, consisting of two sources, a number intermediate nodes, one eavesdropper, with the constraints physical-layer security. Specifically, proposed algorithms select or three nodes to enhance security against malicious eavesdropper. The first selected node operates conventional mode assists sources deliver their data corresponding destinations using an amplify-and-forward protocol. second third are used different communication phases as jammers order create intentional interference upon First, find that topology where randomly sparsely distributed, schemes jamming outperform nonjamming within certain transmitted power regime. We also that, scenario gather close cluster, may be less effective than counterparts. Therefore, introduce hybrid scheme switch between modes. Simulation results validate our theoretical analysis show switching further improves secrecy rate.
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