1. Secure short-packet communications in power beacon-assisted IoT networks over Nakagami-m fading channels.
- Author
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Chen, Dechuan, Li, Jin, Hu, Jianwei, Zhang, Xingang, Zhang, Shuai, and Wang, Dong
- Subjects
- *
PHYSICAL layer security , *ENERGY harvesting , *SIGNAL-to-noise ratio , *RADIO transmitter fading , *INTERNET of things , *ACTUATORS - Abstract
In this work, we investigate short-packet communications in power beacon (PB)-assisted Internet-of-Things (IoT) networks, where an energy-constrained actuator first harvests energy from a dedicated PB, and then transmits confidential signals to a desired controller in the presence of an eavesdropper. We derive a closed-form lower bound approximation expression for the average achievable effective secrecy rate (AESR) over Nakagami-m fading channels. To gain more insights, we also present the asymptotic average AESR in the high signal-to-noise ratio (SNR) regime. Specifically, analytical results indicate that an average AESR floor appears with the increase of SNR. Moreover, a low complexity one-dimensional search method is employed to maximize the average AESR by optimizing the energy harvesting length. Monte-Carlo simulations are provided to corroborate our analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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