Secure Transmission Design for Virtual Antenna Array-Aided Device-to-Device Multicast Communications
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影响因子：8.9
所属单位：School of Computer Science and Information Engineering, Hefei University of Technology
发表刊物：IEEE Transactions on Wireless Communications
项目来源：the National Natural Science Foundation of China under Grant 61971176
关键字：Physical-layer security, virtual antenna array, D2D multicast communication, beamforming
摘要：This paper investigates the physical-layer security in a Virtual Antenna Array (VAA)-aided Device-to-Device Multicast (D2DM) communication system, where the User Equipments (UEs) who cache the common content will form a VAA system and cooperatively multicast the content to UEs who desire it. Specifically, with the target of securing the VAA-aided D2DM communication under the threat of multiple eavesdroppers, we propose a secure beamforming scheme by jointly considering the formed VAA and the Base Station (BS). For obtaining the optimal beamforing vectors, a nonsmooth and nonconvex Weight Sum Rate Maximization Problem (WRMP) is formulated and solved using Successive Convex Approximation (SCA) approach. Furthermore, we consider the worst case that eavesdroppers cooperatively form a eavesdrop VAA to enhance the overhearing capacity. In the worst case, we modify the securing beamforming scheme, formulate the corresponding WRMP and solve it using a two-level optimization. Simulation results validate the improvements of the VAA-aided D2DM scheme in terms of communication security compared with conventional D2DM schemes.
合写作者：Yibo Yi,Kun Li,Hongwei Zhang
第一作者：Xinyue Hu
论文类型：期刊论文
通讯作者：Caihong Kai
学科门类：工学
文献类型：J
卷号：22
期号：7
页面范围：4814 - 4827
ISSN号：1558-2248
是否译文：否
发表时间：2022-12-20
收录刊物：SCI、EI