Secure Cooperative Half-Duplex Cognitive Radio Networks With $K$ -th Best Relay Selection

Summary Enabling a reliable and secure communication in cognitive radio networks (CRNs) is one of the interesting and demanding research areas and these days, it is used in wide range of applications. The traditional works mainly aimed to improve the spectrum efficiency and bandwidth utilization of the CRN. Moreover, it focused on attack detection in the network for improving the reliability. Thus, this work intended to secure the CRN by considering the objectives of both attack detection and quality of service (QoS) improvement. For this purpose, an integrated digital signature and mutual authentication (IDsMA) mechanism is proposed in this paper, which incorporates the benefits of both security and reliability. Also, the Rivest‐Sharmir‐Adlemann (RSA) algorithm is utilized to encrypt and decrypt the data at the transmitter and receiver side. Here, the unique user ID is generated by the service eNodeB based on the hash function, which is validated at the server side for validating the authenticity of the user. Furthermore, the particle swarm optimization (PSO) and relevant vector machine (RVM) techniques are utilized for optimal channel selection and attack classification. The simulation results evaluate the performance of the proposed technique by using various performance measures. Also, its superiority is proved by comparing the proposed technique with the existing techniques.

Section: Related Workmentioning

confidence: 99%

IDsMA: An integrated digital signature and mutual authentication mechanism for securing the cognitive radio networks

Balamurugan

Kumar

2019

“…Substituting the results obtained in (28) and (C3) into (25), after some manipulations, an exact closed-form formula of SOP FRS can be given as…”

Section: Corollary 2 At High Q Values the Asymptotic Closed-form Exmentioning

confidence: 99%

“…In this paper, a generalized PRS protocol is proposed to improve the secrecy performance for underlay CRNs. The main motivations and contributions of this paper can be summarized as follows: First, the proposed protocol is a generalized scheme of the conventional PRS protocols that are proposed in other studies . As previously discussed, the performances of the conventional PRS methods are limited due to the quality of the second hop (or the first hop).…”

Section: Introductionmentioning

confidence: 99%

“…Otherwise, the relay that provides the highest channel gain between itself and the destination is selected. Second, a cooperative medium access control (MAC)‐layer design for the proposed protocol is realized for the selection of the cooperative relay and for the reserving of the channel. Because only the partial CSIs are used in the selection of the relay, the implementation of the proposed scheme is much simpler than that of the FRS scheme of Nguyen et al Next, exact and asymptotic closed‐form expressions of SOP and NSC for the proposed protocols and the corresponding FRS protocol over independent and identically distributed Rayleigh‐fading channels are derived. Monte Carlo simulations are then performed to verify the derived expressions. Finally, the results show that the number of eavesdroppers more negatively impacts on SOP and NSC compared with the number of PUs.…”

Section: Introductionmentioning

confidence: 99%

“…• First, the proposed protocol is a generalized scheme of the conventional PRS protocols that are proposed in other studies. 11,24,28 As previously discussed, the performances of the conventional PRS methods are limited due to the quality of the second hop (or the first hop). In the proposed protocol, the secondary source (SS) first selects a group of the secondary relays with a reliance on the source-relay CSIs.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Secrecy performance of a generalized partial relay selection protocol in underlay cognitive networks

Tran

Choi

2018

Summary In this, we propose a generalized partial relay selection (PRS) protocol to enhance the secrecy performance for cooperative cognitive radio networks (CRNs) in terms of the secrecy outage probability (SOP) and the probability of non‐zero secrecy capacity (NSC). In the proposed scheme, a secondary source communicates with a secondary destination via the assistance of multiple secondary relays, in the presence of multiple secondary eavesdroppers and multiple primary users (PUs). With a reliance on the source‐relay channel state information (CSI), the source selects a group of the potential relays, and one is then chosen to forward the source data to the secondary destination using the randomize‐and‐forward (RF) technique. We consider the relay selection methods in two practical cases, where the CSIs of the eavesdropping links are available or not available. For the performance evaluation and comparison, we derived exact and asymptotic SOP and NSC closed‐form expressions for the proposed protocols and the corresponding full relay selection (FRS) protocol over Rayleigh‐fading channels. Finally, Monte Carlo simulations are presented to confirm the theoretical‐derivation correction. The results confirmed that the proposed protocols can outperform the conventional PRS protocols by designing the number of the potential relays appropriately.

Secrecy outage probability of inter‐vehicular cognitive radio networks

Ata

Erdoğan

2019

Herein, we consider an underlay cognitive radio network (CRN) where mobile secondary user wishes to transmit a confidential information to the secondary destination in the presence of an illegitimate eavesdropper which is trying to steal the classified message signal. The proposed scenario can be viable for a secondary safety task force working with a primary regiment, which wishes to transmit the confidential information to the commander while an eavesdropper is trying to intercept the classified information. In the analysis, two novel power allocation methods are considered by assuming perfect and limited feedback channels of the primary network, and for both methods, exact and asymptotic expressions of secrecy outage probability (SOP) are derived for N*Nakagami-m fading channels which are used to model fading channels such as mobile-to-mobile/vehicle-to-vehicle communication systems where the nodes are moving into a rich scattering environment. We further verified our analytic results through Monte-Carlo simulations. It is shown from the numerical results that the cascading degree of the channels has a worsening effect on the secrecy outage performance of the CRN systems. KEYWORDScascaded fading channels, cognitive radio network, secrecy outage probability Int J Commun Syst. 2020;33:e4244.wileyonlinelibrary.com/journal/dac How to cite this article: Ata SÖ, Erdogan E. Secrecy outage probability of inter-vehicular cognitive radio networks. Int J Commun Syst. 2020;33:e4244. https://doi.