Diamond untrusted relay networks with cooperative jamming: physical layer security perspective

This letter considers a diamond network with two untrusted relays with low-security clearance level. Lossy decoder-and-forward is utilized at both the untrusted relays to enhance the reliability of transmission and to keep the source information confidential to the untrusted relays. The reliable-and...

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Bibliographic Details
Published in:IEICE COMMUNICATIONS EXPRESS 2023, pp.2022XBL0151
Main Author: Qian, Shen
Format: Article
Language:English
Subjects:
cooperative jamming
lossy decode-and-forward
physical layer security
reliable-and-secure probability
untrusted relay
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Summary:This letter considers a diamond network with two untrusted relays with low-security clearance level. Lossy decoder-and-forward is utilized at both the untrusted relays to enhance the reliability of transmission and to keep the source information confidential to the untrusted relays. The reliable-and-secure probability (RSP), which is the probability that the original messages can be retrieved at the destination while keeping confidential to the relays, is derived. It is found that with the help of cooperative jamming signal, superior reliability and security performance in terms of RSP can be achieved.
ISSN:2187-0136
2187-0136
DOI:10.1587/comex.2022XBL0151