A Physical Layer Network Coding Based Modify-and-Forward with Opportunistic Secure Cooperative Transmission Protocol

This paper investigates a new secure relaying scheme, namely physical layer network coding based modify-and-forward (PMF), in which a relay node linearly combines the decoded data sent by a source node with an encrypted key before conveying the mixed data to a destination node. We first derive the g...

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Bibliographic Details
Published in:Mobile networks and applications Vol. 24; no. 2; pp. 464 - 479
Main Authors: Vien, Quoc-Tuan, Le, Tuan Anh, Nguyen, Huan X., Le-Ngoc, Tho
Format: Journal Article
Language:English
Published: New York Springer US 01.04.2019
Springer Nature B.V
Subjects:
Coding
Communications Engineering
Computer Communication Networks
Electrical Engineering
Encryption
Engineering
IT in Business
Networks
Nodes
Relay networks
Relaying
Wireless networks
Decode-and-forward
Cooperative jamming
Physical layer network coding
Wireless relay networks
Modify-and-forward
ISSN:1383-469X, 1572-8153
Online Access:Get full text
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Summary:This paper investigates a new secure relaying scheme, namely physical layer network coding based modify-and-forward (PMF), in which a relay node linearly combines the decoded data sent by a source node with an encrypted key before conveying the mixed data to a destination node. We first derive the general expression for the generalized secrecy outage probability (GSOP) of the PMF scheme and then use it to analyse the GSOP performance of various relaying and direct transmission strategies. The GSOP performance comparison indicates that these transmission strategies offer different advantages depending on the channel conditions and target secrecy rates, and relaying is not always desirable in terms of secrecy. Subsequently, we develop an opportunistic secure transmission protocol for cooperative wireless relay networks and formulate an optimisation problem to determine secrecy rate thresholds (SRTs) to dynamically select the optimal transmission strategy for achieving the lowest GSOP. The conditions for the existence of the SRTs are derived for various channel scenarios.
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ISSN:1383-469X
1572-8153
DOI:10.1007/s11036-018-1157-1