Secrecy Outage Probability of Relay Selection Based Cooperative NOMA for IoT Networks

Li, Hui; Chen, Yaping; Zhu, Mingfu; Sun, Jiangfeng; Do, Dinh‐Thuan; Menon, Varun G.; Shynu, P G

doi:10.1109/access.2020.3047136

Cited by 21 publications

(10 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All the parameters are the same as defined for Equation (11). After substituting the values from Equations ( 11) and (12) into Equation (10) and with certain mathematical steps we get Equation ( 13)…”

Section: 12mentioning

confidence: 99%

“…However, by employing NOMA techniques in cooperative communication, where the strong user identifies weaker users and acts as relay for it, it is found superior than NOMA alone [5]. Dedicated relaying with the Amplify and Forwards (AF) and Decode and Forwards (DF) protocols in half‐duplex and full‐duplex modes has also been employed in literature [6–14] as additional cooperative strategies, particularly when there is no direct connection between communication nodes. A half‐duplex system is the one in which a host can send or receive at one time while in a full‐duplex system, the host can send and receive simultaneously.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Secrecy outage probability of DF‐based C‐NOMA under half and full duplex

Gadi,

Singh,

Kumar

et al. 2023

IET Communications

View full text Add to dashboard Cite

Cooperative Non‐orthogonal Multiple Access (C‐NOMA) is projected as the dominant technology for 5G and beyond. Also, physical layer security, due to the presence of eaves‐dropper, is a bottleneck security concern for any open link wireless system. This manuscript presents a novel Decode & Forward (DF)‐based C‐NOMA system in the presence of two eavesdroppers. Moreover, both half duplex and full duplex schemes are included in the analysis. Thereby, separate expressions for Secrecy Outage Probability (SOP), being among the most crucial performance measures in physical layer security, are produced and examined for the system under consideration. Specifically, first of all, novel expression of SOP for C‐NOMA systems under both Half Duplex (HD) and Full Duplex (FD) schemes is derived for the case when only eavesdropper one (E1) attacks on link source to device one (S‐D1). Thereafter, expressions of SOP for the C‐NOMA system under both HD and FD schemes are derived, considering presence of E1 and E2 on the links, source to device one (S‐D1) and source to device two (S‐D2), respectively. Further, for both the duplexes, the effect of eavesdropper one (E1) and eavesdropper two (E2) on the links, S‐D1 and S‐D2, respectively, is analyzed. The presented analysis is useful in the technological development level of C‐NOMA in the presence of multiple eavesdroppers. The simulated results show perfect agreement with the theory.

show abstract

Section: 12mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Secrecy outage probability of DF‐based C‐NOMA under half and full duplex

Gadi,

Singh,

Kumar

et al. 2023

IET Communications

View full text Add to dashboard Cite

show abstract

“…The author study the use of NOMA in improving security and quality of service (QoS) of IoT networks hosting a passive eavesdropper by taking advantage of NOMA's power allocation ability [16]. The authors develop an anti-eavesdropping security scheme for the cooperative NOMA-IoT network [17]. The authors formulated closed-form secrecy outage probability (SOP) results.…”

Section: Introductionmentioning

confidence: 99%

Empowering secure transmission for downlink of multiple access system relying non-orthogonal signal multiplexing

Nguyen

2022

Bulletin EEI

Self Cite

View full text Add to dashboard Cite

The growth of internet-of-things (IoT) inspired use cases in different run of the mill environments such as cities, industries, healthcare, agriculture, and transportation, has led to a greater desire for safer IoT data gathering and storage. However, securing IoT is challenging due to form-factor, complexity, energy, and connectivity limitations. Conventional coding-based security techniques are unsuitable for ultra-reliable low-latency and energy-efficient communication in IoT. Numerous research studies on physical layer security (PLS) techniques for fifth generation (5G) have emerged recently, but not all of the solutions can be used in IoT networks due to complexity limitations. Non-orthogonal multiple access (NOMA) is billed as a possible technology to solve connectivity and latency requirements in IoT. In this study, we exploit the power allocation characteristics of NOMA to enhance security in a downlink deviceto-device (D2D) decode and forward (DF) IoT network infiltrated by an eavesdropper. Our performance metric of choice is the secrecy outage probability (SOP). We formulate exact SOP results for different users. Simulation results demonstrate the positive impact of NOMA on SOP in a D2D IoT-NOMA network.

show abstract

“…The closed-form expressions for outage probabilities were developed for two relay selection (RS) strategies: the optimal single relay selection scheme and the two-step single relay selection scheme. Similarly, for cooperative NOMA networks, closed-form expressions for secrecy outage probability for different relay selection schemes were investigated in [34]. In the presence of an eavesdropper, a secret transmission of uplink NOMA with a single antenna and multi-antenna users was examined in [35].…”

Section: Introductionmentioning

confidence: 99%

Secrecy Performance Analysis of Cooperative Nonorthogonal Multiple Access in IoT Networks

et al. 2022

View full text Add to dashboard Cite

Different system models utilizing Non-orthogonal multiple access (NOMA) have been successfully studied to meet the growing capacity demands of the Internet of Things (IoT) devices for the next-generation networks. However, analyzing the antieavesdropping for NOMA systems under different scenarios and settings still needs further exploration before it can be practically deployed. Therefore, in this paper, we study the secrecy performance of a cooperative NOMA system in IoT networks where two source nodes communicate with their respective destination nodes via a common relay in the presence of an eavesdropper. Specifically, two source node sends their data in parallel over the same frequency band to the common relay node using uplink NOMA. Then, the relay node forwards the decoded symbols to the respective destination nodes using downlink NOMA in the presence of an eavesdropper. To enhance the security performance of the considered system, we study and propose an artificial noise (AN)aided scheme in which the two destination nodes emit a jamming signal to confuse the eavesdropper while receiving the signal from the common relay node. We also study the effect of NOMA power allocation, perfect successive interference cancellation (pSIC), and imperfect SIC (ipSIC) on the considered system. Analytical expressions for the Ergodic capacity, Ergodic secrecy sum rate (ESSR), and secrecy outage probability (SOP) are mathematically derived and verified with the simulation results. Our results demonstrate that a significantly higher ESSR and lower SOP of the system can be attained compared to a conventional NOMA system without a destination-assisted jamming signal scheme.

show abstract

Secrecy Outage Probability of Relay Selection Based Cooperative NOMA for IoT Networks

Cited by 21 publications

References 38 publications

Secrecy outage probability of DF‐based C‐NOMA under half and full duplex

Secrecy outage probability of DF‐based C‐NOMA under half and full duplex

Empowering secure transmission for downlink of multiple access system relying non-orthogonal signal multiplexing

Secrecy Performance Analysis of Cooperative Nonorthogonal Multiple Access in IoT Networks

Contact Info

Product

Resources

About