Low-Delay Path Selection for Cluster-Based Buffer-Aided Vehicular Communications

Alam, Zahangir; Abkenar, Forough Shirin; Adhicandra, Iwan; Murali, Sarumathi; Jamalipour, Abbas

doi:10.1109/tvt.2020.2976926

Cited by 9 publications

(1 citation statement)

References 21 publications

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“…Due to the introduction of buffers, the queuing delay of data packets at buffer-aided relay increases. To achieve reliable communication and reduce delay, the authors in [ 21 ] proposed a delay-sensitive buffer-aided relay selection based on channel-based greedy scheduling in vehicular networks. Because of the low implementation complexity of buffer-aided relay selection, the authors in [ 22 ] use buffer-aided relay selection to improve the reliability of bidirectional wireless sensor network communications.…”

Section: Related Workmentioning

confidence: 99%

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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Section: Related Workmentioning

confidence: 99%