Secrecy Outage Analysis for SIMO Underlay Cognitive Radio Networks over Generalized-K Fading Channels

Lei, Hongjiang; Zhang, Huan; Ansari, Imran Shafique; Pan, Gaofeng; Qaraqe, Khalid

doi:10.1109/lsp.2016.2587323

Cited by 28 publications

(26 citation statements)

References 20 publications

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“…In [15][16][17][18], the authors considered cooperative jamming approaches to reduce the data rate received at the eavesdroppers. The authors of [19][20][21][22][23][24][25] considered the secrecy performance enhancement for underlay cognitive radio (UCR) networks in which transmit power of secondary users (SUs) is limited by maximum interference levels required by primary users (PUs). The authors of [26][27][28][29] proposed secure communication protocols for two-way relay networks.…”

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confidence: 99%

Secrecy Performance Enhancement for Underlay Cognitive Radio Networks Employing Cooperative Multi-Hop Transmission with and without Presence of Hardware Impairments

Tin

Nguyen

Duy³

et al. 2019

Entropy

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In this paper, we consider a cooperative multi-hop secured transmission protocol to underlay cognitive radio networks. In the proposed protocol, a secondary source attempts to transmit its data to a secondary destination with the assistance of multiple secondary relays. In addition, there exists a secondary eavesdropper who tries to overhear the source data. Under a maximum interference level required by a primary user, the secondary source and relay nodes must adjust their transmit power. We first formulate effective signal-to-interference-plus-noise ratio (SINR) as well as secrecy capacity under the constraints of the maximum transmit power, the interference threshold and the hardware impairment level. Furthermore, when the hardware impairment level is relaxed, we derive exact and asymptotic expressions of end-to-end secrecy outage probability over Rayleigh fading channels by using the recursive method. The derived expressions were verified by simulations, in which the proposed scheme outperformed the conventional multi-hop direct transmission protocol.

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confidence: 99%

Secrecy Performance Enhancement for Underlay Cognitive Radio Networks Employing Cooperative Multi-Hop Transmission with and without Presence of Hardware Impairments

Tin

Nguyen

Duy³

et al. 2019

Entropy

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“…The authors derived the analytical expression for SOP over Nakagami‐ m fading channels for single‐input multiple‐output systems with generalized selection combining . The secrecy outage performance of a SIMO cognitive wiretap system over generalized‐K channels, where both the primary user and the secondary transmitter are equipped with a single antenna, and the legitimate and the eavesdropper receivers are equipped with multiple antennas is considered . The authors investigated the probability of outage of secrecy for an underlay cognitive radio system over Rayleigh fading channels, where the secondary users deployed single antenna operating in full duplex mode …”

Section: Introductionmentioning

confidence: 99%

Secrecy outage probability of inter‐vehicular cognitive radio networks

Ata

Erdoğan

2019

Int J Communication

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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.

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“…An issue of performance analysis in physical layer security over GK fading channels is that the exact probability density function (PDF) of GK fading is very complex, and typically leads to a Meijer's G-function in the final closed-form expression [13], [14], and there is a strong debate about whether the Meijer's G-function can be seen as a closed-form or not [15]. Therefore, a tight and tractably approximate PDF of GK fading was proposed in [16], called the mixture Gamma distribution method, which is composed by only elementary functions.…”

Section: Introductionmentioning

confidence: 99%

“…The DF relay can use an independent codeword from that of the source such that the eavesdropper (even powerful eavesdropper) cannot employ maximal ratio combining[23] 2. There is a strong debate about whether the Meijer's G-function can be considered as the closed-form or not[15] 3. In this approximate PDF and CDF, mt and kt are only allowed to take positive integers.…”

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Secrecy Analysis in DF Relay Over Generalized-$K$ Fading Channels

Zhao

Liu

Yang

et al. 2019

IEEE Trans. Commun.

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In this paper, we analyze the secrecy performance of the decode-and-forward (DF) relay system in generalized-K fading channels. In a typical four-node communications model, a source (S) sends confidential information to a destination (D) via a relay (R) using DF strategy in two time slots, while an eavesdropper (E) wants to overhear the information from S to D over generalized-K fading channels. To be more realistic, we assume that E can receive the signals of two time slots, and there is no direct link between S and D because of heavy fading. Based on those assumptions, we derive closed-form expressions for the secrecy outage probability (SOP) and ergodic secrecy capacity (ESC) by using a tight approximate probability density function of the generalized-K model. Then, asymptotic expressions for the SOP and ESC are also derived in the high signal-to-noise ratio region, not only because we can get some insights about SOP and ESC, but also because expressions for SOP and ESC can be simplified significantly. The single relay system is subsequently extended into a multi-relay system, where the asymptotic SOP analysis of three proposed relay selection strategies is investigated. Further, the security-reliability tradeoff analysis in the multi-relay system is also presented given that S adopts a constant code rate. Finally, the Monte-Carlo simulation is used to demonstrate the accuracy of the derived closed-form expressions.

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Secrecy Outage Analysis for SIMO Underlay Cognitive Radio Networks over Generalized-K Fading Channels

Cited by 28 publications

References 20 publications

Secrecy Performance Enhancement for Underlay Cognitive Radio Networks Employing Cooperative Multi-Hop Transmission with and without Presence of Hardware Impairments

Secrecy Performance Enhancement for Underlay Cognitive Radio Networks Employing Cooperative Multi-Hop Transmission with and without Presence of Hardware Impairments

Secrecy outage probability of inter‐vehicular cognitive radio networks

Secrecy Analysis in DF Relay Over Generalized-$K$ Fading Channels

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