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- W3125363571 abstract "In this paper, we propose to use a wireless-powered friendly jammer to enable secure communication between a source node and destination node, in the presence of an eavesdropper. We consider a two-phase communication protocol with fixed-rate transmission. In the first phase, wireless power transfer is conducted from the source to the jammer. In the second phase, the source transmits the information-bearing signal under the protection of a jamming signal sent by the jammer using the harvested energy in the first phase. We analytically characterize the long-time behavior of the proposed protocol and derive a closed-form expression for the throughput. We further optimize the rate parameters for maximizing the throughput subject to a secrecy outage probability constraint. Our analytical results show that the throughput performance differs significantly between the single-antenna jammer case and the multi-antenna jammer case. For instance, as the source transmit power increases, the throughput quickly reaches an upper bound with single-antenna jammer, while the throughput grows unbounded with multi-antenna jammer. Our numerical results also validate the derived analytical results." @default.
- W3125363571 created "2021-02-01" @default.
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- W3125363571 date "2016-01-01" @default.
- W3125363571 modified "2023-10-12" @default.
- W3125363571 title "Secure Communication With a Wireless-Powered Friendly Jammer" @default.
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- W3125363571 doi "https://doi.org/10.1109/twc.2015.2474378" @default.
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