Secure Performance of AF and DF Relaying in Cooperative Noma Systems

Zaghdoud, Nesrine; Alouane, Wided Hadj; Boujemâa, Hatem; Touati, Farid

doi:10.1109/sta.2019.8717242

Cited by 12 publications

(10 citation statements)

References 14 publications

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“…When the fading parameters α have the same values, the OP decreases with the increase of antenna number M. It is proved that the reliability of the system will be improved with the increase of channel fading parameters or the number of antenna at the receiver. In addition, we can also see from the Figure 8 that the asymptotic curves of D 1 (M = 2, α = 1) and D 2 (M = 1, α = 1) is parallel, and the asymptotic curves of D 1 (M = 2, α = 2) and D 2 (M = 2, α = 1) are also parallel, which verifies the diversity order of derived in (33), and their corresponding diversity order is the same. Figure 7.…”

Section: Monte Carlo Simulations Repeated 10 7 Iterationssupporting

confidence: 70%

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Security Analysis of Multi-Antenna NOMA Networks Under I/Q Imbalance

Zhao

Zhang

et al. 2019

Electronics

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This paper investigates the reliability and security performance of the downlink non-orthogonal multiple access (NOMA) networks over Nakagami-m fading channels, where the base station (BS) aims to communicate with multi-antenna NOMA users in the presence of a multi-antenna eavesdropper. To be more practical, a detrimental factor at both transmitter and receiver is considered, namely in-phase and quadrature-phase imbalance (IQI). To further improve the reliability and security of the considered networks, the selection combining (SC) algorithm at the receiver is taken into account. More specifically, the exact analytical expressions for the outage probability (OP) and the intercept probability (IP) are derived in closed-form. To obtain a better understanding of the influence for the IQI parameters on the system performance, the asymptotic behaviors for the outage probabilities (OPs) in the high signal-to-noise ratio (SNR) region are analyzed. Based on the asymptotic results, the diversity order of the considered system are obtained and discussed. The numerical results are presented to verify the validity of the theoretical analysis.

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Section: Monte Carlo Simulations Repeated 10 7 Iterationssupporting

confidence: 70%

“…The security performance of the multiple eavesdroppers system with collusion and non-collusion eavesdroppers scenarios was studied [32]. The closed-form expressions of SOP and strictly positive secrecy capacity (SPSC) for cooperative NOMA systems over Rayleigh fading channels were derived in [33].…”

Section: Introductionmentioning

confidence: 99%

Security Analysis of Multi-Antenna NOMA Networks Under I/Q Imbalance

Zhao

Zhang

et al. 2019

Electronics

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“…Recently, adopting PLS in cooperative NOMA systems has also attracted some significant research attentions. In [18], the authors derived the closed expressions of secure outage probability (SOP) and strictly positive secrecy capacity (SPSC) of cooperative NOMA system under AF and DF relay modes, which verified that the secure performance of the system can be improved by using the optimal power allocation parameters. In [19], a new NOMA cooperative jamming scheme was proposed to improve the security of the communication system.…”

Section: Introduction a Backgroundmentioning

confidence: 90%

Physical Layer Security of Cooperative NOMA for IoT Networks Under I/Q Imbalance

Zhao

Gao

et al. 2020

IEEE Access

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In this paper, we investigate the reliability and security of cooperative dual-hop non-orthogonal multiple access (NOMA) for internet-of-thing (IoT) networks, in which the transceivers consider a detrimental factor of in-phase and quadrature-phase imbalance (IQI). The communication between the source and destination is accomplished through a decode-and-forward (DF) relay in the presence of an eavesdropper. In order to characterize the performance of the considered system, exact analytical expressions for the outage probability (OP) and intercept probability (IP) are derived in closed-form. Furthermore, to better understanding the performance of the considered system, we further derive the asymptotic expressions of OP in the high signal-to-noise ratio (SNR) regime and IP at the high main eavesdropping ratio (MER) region. A large number of analysis and Monte Carlo simulation results show that the existence of IQI usually increases the corresponding OP and reduces the IP, which means that reduces the reliability of the system and improves the security. In addition, the provided results provide useful insights into the trade-off between reliability and security of secure cooperative communication systems. INDEX TERMS Cooperative communication, in-phase and quadrature-phase imbalance, Internet-of-Things, physical layer security, non-orthogonal multiple access.

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“…23,24 Further, to enhance the secrecy sum rate, in Garcia et al 25 the authors proposed particle swarm optimization (PSO)-based power allocation scheme for a NOMA network with DF relaying. The secrecy performance of NOMA and cooperative NOMA network without jamming (WJ) is investigated in Chen et al and Zaghdoud et al 26,27 which further motivated us to examine the secrecy analysis of cooperative NOMA network under different jamming conditions. Additionally, to secure the confidential information against eavesdropping and to enhance the secrecy performance further, cooperative jamming technique has been employed for NOMA system.…”

Section: Introductionmentioning

confidence: 99%

Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

Nayak

Gurrala

2021

Int J Communication

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In this work, a new control jamming (CJ) scheme has been proposed for a cooperative nonorthogonal multiple access (NOMA) network with optimal power allocation factors by employing decode-and-forward (DF) relay.Maximization of secrecy rate at both NOMA users with the aid of CJ under total transmit power constraint is considered as an optimization problem. In this regard, invasive weed optimization (IWO) algorithm-based approach is proposed to facilitate optimal power allocation for the considered network. In this analysis, performance metric secrecy rate is analyzed with CJ at both NOMA users by varying the location of eavesdropper with respect to the relay and jammer. In addition, the performance of fixed power allocation (FPA) and proposed power allocation (PPA) schemes is investigated with CJ and compared with jamming (J) and without jamming (WJ) conditions. Simulation result analysis specifies that secrecy performance is enhanced remarkably by CJ and PPA outperforms the FPA.

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Secure Performance of AF and DF Relaying in Cooperative Noma Systems

Cited by 12 publications

References 14 publications

Security Analysis of Multi-Antenna NOMA Networks Under I/Q Imbalance

Security Analysis of Multi-Antenna NOMA Networks Under I/Q Imbalance

Physical Layer Security of Cooperative NOMA for IoT Networks Under I/Q Imbalance

Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

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