Secrecy in Dual-Hop Relaying Network Using the Independent Randomize-and-Forward Strategy
Authors: 
Feiwen Li, Yongming WangAuthors Info & Claims
Feiwen Li, Yongming WangAuthors Info & ClaimsPages 71 - 78
Abstract
In this paper, we investigate secure communication for a dual-hop relay channel in the presence of an eavesdropper. A novel independent randomize-and-forward (IRF) strategy is proposed to enhance the secrecy performance, where the relay maps the decoded message to an independent message set then encodes the message by random-coding argument. For the discrete model, we establish the achievable rate-equivocation for the IRF strategy. For the Gaussian model, we derive the perfect secrecy rate of IRF strategy and compare it with decode-and-forward (DF), amplify-and-forward (AF) and noise-forwarding (NF) strategies. Theoretical analysis indicates that the relay's engagement of independent secure coding enhances the security of transmission. Numerical results also show the proposed IRF strategy can significantly improve the secrecy performance of the dual-hop relay channel in some cases.
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Index Terms
- Secrecy in Dual-Hop Relaying Network Using the Independent Randomize-and-Forward Strategy
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Published In
November 2019
340 pages
ISBN:9781450369046
DOI:10.1145/3345768
- General Chair:
- Antonio A. F. Loureiro,
- Program Chairs:
- Salil Kanhere,
- Paolo Bellavista
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Published: 25 November 2019
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November 25 - 29, 2019
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