Wireless Pers Commun https://doi.org/10.1007/s11277-018-5871-6 Secure Multi-hop Data Transmission in Cognitive Radio Networks Under Attack in the Physical Layer 1 1 1 • • Pham Duy Thanh Hiep Vu-Van Insoo Koo Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract Cognitive radio networks (CRNs) have a shortcoming in that attackers can increase their ability to disturb secondary users (SUs). This paper focuses on jamming attacks in the physical layer, in which several attackers try to interrupt SUs by injecting the interference into their communications. Once a jammer transmits interfering signals on the channel during the deﬁned time, all ongoing transmissions on this channel will be cor- rupted. It is quite difﬁcult for SUs to protect a single-hop data transmission from jammers. So, obtaining a solution for secure multi-hop data transmission in the presence of jammers becomes a more challenging task in CRNs. This paper investigates a strategy to ﬁnd the optimal route and channels for transmission between cognitive transmitters and receivers in the presence of jammers in CRNs. In this scenario, the jammers are located randomly and their jamming behavior is assumed to follow a Gaussian distribution. We provide an optimal link–channel pair allocation scheme in which the secondary
Wireless Personal Communications – Springer Journals
Published: Jun 1, 2018
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