Research Article
Interference Neutralization vs Clean Relaying in Cognitive Radio Networks with Secrecy
@INPROCEEDINGS{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}, proceedings={Workshop on Wireless Communication Security at the Physical Layer}, publisher={EAI}, proceedings_a={WICOMSEC-PHY}, 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
WICOMSEC-PHY
ACM
DOI: 10.4108/eai.22-7-2015.2260193
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.
