Interference Neutralization vs Clean Relaying in Cognitive Radio Networks with Secrecy

Pin-Hsun Lin; Frederic Gabry; Ragnar Thobaben; Eduard Jorswieck; Mikael Skoglund

Research Article

Interference Neutralization vs Clean Relaying in Cognitive Radio Networks with Secrecy

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@ARTICLE{10.4108/eai.22-7-2015.2260193,
    author={Pin-Hsun Lin and Frederic Gabry and Ragnar Thobaben and Eduard Jorswieck and Mikael Skoglund},
    title={Interference Neutralization vs Clean Relaying in Cognitive Radio Networks with Secrecy},
    journal={EAI Endorsed Transactions on Ambient Systems},
    volume={2},
    number={7},
    publisher={EAI},
    journal_a={AMSYS},
    year={2015},
    month={8},
    keywords={physical layer security, cognitive radio, jamming, interference neutralization, relaying},
    doi={10.4108/eai.22-7-2015.2260193}
}

Pin-Hsun Lin
Frederic Gabry
Ragnar Thobaben
Eduard Jorswieck
Mikael Skoglund
Year: 2015
Interference Neutralization vs Clean Relaying in Cognitive Radio Networks with Secrecy
AMSYS
EAI
DOI: 10.4108/eai.22-7-2015.2260193

Pin-Hsun Lin¹, Frederic Gabry²^,*, Ragnar Thobaben³, Eduard Jorswieck¹, Mikael Skoglund³

1: Communications Laboratory, Faculty of Electrical and Computer Engineering, Technische Universitat Dresden, Dresden, Germany
2: Mathematical and Algorithmic Sciences Lab, Huawei France Research Center, Paris
3: School of Electrical Engineering and the ACCESS Linnaeus Centre, KTH Royal Institute of Technology, Stockholm, Sweden

*Contact email: frederic.gabry@huawei.com

Abstract

In this paper we study cognitive radio networks with secrecy constraints on the primary transmission. In particular we consider several transmission schemes for the secondary transmitter, namely interference neutralization (IN) and cooperative jamming with and without clean relaying (CR). We derive and analyze the achievable secondary rate performance of the schemes. Furthermore we thoroughly investigate the advantages and shortcomings of these schemes through numerical simulations in a geometric model where we highlight the impact of the users’ locations and show the important difference in all schemes depending on the topology. Our results show that the secondary transmitter can successfully adapt its transmission scheme (and parameters), i.e., either IN or CR, depending on its location to maximize its rate while insuring perfect secrecy of the primary transmission.

Keywords: physical layer security, cognitive radio, jamming, interference neutralization, relaying

Published: 2015-08-11
Publisher: EAI

: http://dx.doi.org/10.4108/eai.22-7-2015.2260193

Copyright © 2015 F. Gabry et al., licensed to EAI. This is an open access article distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.