AN-aided full-duplex secure transmissions under imperfect self-interference cancellation |
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Authors: | Thanh Lam Cao Lap Luat Nguyen Tien-Tung Nguyen Khuong Ho-Van Hien Q. Ta |
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Affiliation: | 1. School of Electrical Engineering, International University, Ho Chi Minh City, Vietnam and Vietnam National University, Ho Chi Minh City, Vietnam;2. Telecommunication Division, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam;3. Department of Telecommunications Engineering, Ho Chi Minh City University of Technology (HCMUT) and Vietnam National University, Ho Chi Minh City, Vietnam |
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Abstract: | This paper considers a full-duplex (FD) secure transmission scheme with aid of the artificial noise deployed at both transmitter and receiver under imperfect self-interference cancellation. The expressions of secrecy and connection outage probabilities are derived, and hence, the secrecy throughput of the proposed scheme is evaluated. The results show that the performance of the proposed FD scheme outperforms that of conventional half-duplex and FD receiver schemes in terms of the secrecy outage probability. In addition, the proposed FD scheme can achieve high secrecy throughput under various locations of the eavesdropper. Especially when the eavesdropper is located close to the transmitter, the secrecy throughput of the proposed FD scheme is nearly double that of the half-duplex scheme with artificial noise injection while that of the scheme with FD jamming receiver goes to zero. |
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Keywords: | artificial noise full-duplex physical layer security secrecy outage probability |
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