Jamming and Link Selection for Joint Secrecy/Delay Guarantees in Buffer-Aided Relay System

He, Ji; Liu, Jia; Su, Wei Lin; Shen, Yulong; Jiang, Xiaohong; Shiratori, Norio

doi:10.1109/tcomm.2022.3187761

Cited by 7 publications

(2 citation statements)

References 62 publications

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“…As research continued, researchers began to investigate how to achieve secure communications using buffer-aided relay selection when considering possible eavesdroppers in the network [ 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. Based on the work in [ 19 ], the authors in [ 26 ] consider the case where a passive eavesdropper is present and proposed a new buffer-aided relay selection scheme to achieve secure communications by selecting the link with the maximum instantaneous secrecy capacity at each hop to transmit the signals.…”

Section: Related Workmentioning

confidence: 99%

“…The authors in [ 29 ] extend secure communications to bidirectional wireless relay network and design a buffer-aided relay selection scheme based on an achievable rate. In addition, to resist the eavesdroppers, buffer-aided relay selection is often combined with full duplex (FD) [ 30 ], cooperative jamming (CJ) [ 31 ] and energy harvesting (EH) [ 32 ] to achieve secure communications. Although these schemes can realize secure communications, they also increase the implementation complexity, which conflicts with the original intent of adopting buffer-aided relay selection.…”

Section: Related Workmentioning

confidence: 99%

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Deep Q-Learning-Based Buffer-Aided Relay Selection for Reliable and Secure Communications in Two-Hop Wireless Relay Networks

Zhang

Liao

et al. 2023

Sensors

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This paper investigates the problem of buffer-aided relay selection to achieve reliable and secure communications in a two-hop amplify-and-forward (AF) network with an eavesdropper. Due to the fading of wireless signals and the broadcast nature of wireless channels, transmitted signals over the network may be undecodable at the receiver end or have been eavesdropped by eavesdroppers. Most available buffer-aided relay selection schemes consider either reliability or security issues in wireless communications; rarely is work conducted on both reliability and security issues. This paper proposes a buffer-aided relay selection scheme based on deep Q-learning (DQL) that considers both reliability and security. By conducting Monte Carlo simulations, we then verify the reliability and security performances of the proposed scheme in terms of the connection outage probability (COP) and secrecy outage probability (SOP), respectively. The simulation results show that two-hop wireless relay network can achieve reliable and secure communications by using our proposed scheme. We also performed comparison experiments between our proposed scheme and two benchmark schemes. The comparison results indicate that our proposed scheme outperforms the max-ratio scheme in terms of the SOP.

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