Physical Layer Security in Uplink NOMA Multi-Antenna Systems With Randomly Distributed Eavesdroppers

Gómez, Gerardo; Martín-Vega, Francisco J.; López‐Martínez, F. Javier; Liu, Yuanwei; Elkashlan, Maged

doi:10.1109/access.2019.2920578

Cited by 32 publications

(25 citation statements)

References 42 publications

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“…e security performance of the NOMA networks can be improved by invoking the protected zone and by generating noise at the BS as shown by Liu et al [7]. e physical layer security of uplink nonorthogonal multiple access is analyzed by Gerardo Gomez et al [8]. Tao et al [9] proposed a new reliable physical layer network coding and cascade-computation decoding scheme.…”

Section: Related Workmentioning

confidence: 99%

Physical Layer Security in Nonorthogonal Multiple Access Wireless Network with Jammer Selection

Zheng

Chen

2019

Security and Communication Networks

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e physical layer security of downlink nonorthogonal multiple access (NOMA) network is analyzed. In order to improve the secrecy probability, friendly jammers are jointed in the NOMA network. Two jammer schemes are proposed in the NOMA network. All the jammers transmit jamming signal without jammer selection in the rst scheme (NO JS scheme). Jammers are selected to transmit jamming signal if their interfering power on scheduled users is below a threshold in the second scheme (JS scheme). A stochastic geometry approach is applied to analyze the outage probability and the secrecy probability. Compared with the NO JS scheme and traditional scheme (without jointing jammers), the jammer selection scheme provides a good balance between the user outage probability and secrecy probability. Numerical results demonstrate that the security performance of the two proposed schemes can be improved by jointing the jammers in the NOMA wireless network.Hindawi Security and Communication Networks Volume 2019, Article ID 7869317, 9 pages https://doi.org/10.1155/2019/7869317 multitier millimeter wave cellular networks [16], and NOMA network [17]. It has been succeeded to develop tractable models to characterize and better understand the performance of these networks, and these models have been shown to provide tractable yet accurate performance bounds for these networks.

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Section: Related Workmentioning

confidence: 99%

Physical Layer Security in Nonorthogonal Multiple Access Wireless Network with Jammer Selection

Zheng

Chen

2019

Security and Communication Networks

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“…By introducing multi-antenna into the NOMA systems, it can achieve the advantages of multi-antenna and NOMA. Therefore, some research works have investigated the combined technology; see [34][35][36][37][38] and the references therein. Authors in [34] studied the performance of multiple-antenna NOMA and OMA, and it indicated that the performance of multiple-antenna NOMA outperforms that of multiple-antenna OMA one.…”

Section: Introductionmentioning

confidence: 99%

“…The antenna selection (AS) technology has the advantages of low cost, low complexity, high diversity gains, which can solve the computational complexity and power consumption issues caused by multiple antennas. Therefore, the combination of NOMA and AS has attracted significant attention [35][36][37][38]. In [35], the authors analyzed the secure outage performance of MISO-NOMA systems by deriving the exact analytical expressions of SOP under optimal antenna selection (OAS) and suboptimal antenna selection (SAS) schemes, and proposed an effective power allocation scheme to obtain the non-zero diversity order under the two AS schemes.…”

Section: Introductionmentioning

confidence: 99%

“…In [35], the authors analyzed the secure outage performance of MISO-NOMA systems by deriving the exact analytical expressions of SOP under optimal antenna selection (OAS) and suboptimal antenna selection (SAS) schemes, and proposed an effective power allocation scheme to obtain the non-zero diversity order under the two AS schemes. The authors analyzed the security performance of the uplink NOMA system, where the BS is equipped with multiple antennas [36]. Regarding hardware impairments at transceiver, the authors of [38] investigated the reliability and security of multiple-antenna cooperative networks by proposing three SC schemes [37].…”

Section: Introductionmentioning

confidence: 99%

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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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“…Yet, no jamming technique was utilized to improve security. The distribution of eavesdroppers was assumed to be random in [25], where the coverage probability and effective secrecy throughput (EST) of a specific user were analyzed for a fixed or an adaptive transmission rate, and only a protect zone (an eavesdropper-exclusion area) was adopted to enhance the overall EST. Different from keyless physical security in above secure UL NOMA, [26] proposed an uplink chaos NOMA transmission scheme which is based on a common key encryption to realize a secure and large-capacity uplink transmission.…”

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confidence: 99%

Jamming-Aided Secrecy Performance in Secure Uplink NOMA System

2020

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A novel secrecy scenario of uplink non-orthogonal multiple access (NOMA) along with cooperative jammer(s) to improve secrecy performance is studied in this work. We first characterize secrecy performance in terms of positive secrecy rate probability, secrecy outage probability (SOP) and effective secrecy throughput (EST), and derive the closed-expressions of individual secrecy performance. The analytical results not only show an improvement on secrecy performance with the aid of cooperative jamming, but also clearly illustrate how each jammer affects the secrecy performance. We then continue the study of the individual secrecy performance for its asymptotic behaviors, and reveal it is only dependent on its relative distance to the eavesdropper over the desired receiver in a high signal-to-noise ratio (SNR) regime. Finally, the maximization of overall secrecy performance is covered by investigating two optimization problems: 1) optimal selection of jammer(s) under the same transmit power; 2) optimal power allocation to each transmitter, including jammers, under the constraint of limited total transmit power. The solutions to these two problems are presented and demonstrated by an appropriate case. INDEX TERMS Cooperative jamming, non-orthogonal multiple access (NOMA), successive interference cancellation (SIC), secrecy performance, zero-forcing (ZF). I. INTRODUCTION A. BACKGROUND

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Physical Layer Security in Uplink NOMA Multi-Antenna Systems With Randomly Distributed Eavesdroppers

Cited by 32 publications

References 42 publications

Physical Layer Security in Nonorthogonal Multiple Access Wireless Network with Jammer Selection

Physical Layer Security in Nonorthogonal Multiple Access Wireless Network with Jammer Selection

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

Jamming-Aided Secrecy Performance in Secure Uplink NOMA System

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