A Secure Downlink NOMA Scheme Against Unknown Internal Eavesdroppers

Abushattal, Abdelrahman; Althunibat, Saud; Qaraqe, Marwa; Arslan, Hüseyin

doi:10.1109/lwc.2021.3064234

Cited by 11 publications

(9 citation statements)

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“…The error rate performance of two-user NOMA is extensively in the literature [31]- [33], [43]- [49], unlike the three-user NOMA [36], [37], [50]- [52] and arbitrary number of NOMA users [22], [39], [53], [54]. All the previous references consider single-input-single-output (SISO) channels except [22] which considers arbitrary receiving antennas.…”

Section: ) Various Number Of Usersmentioning

confidence: 99%

“…Two and three-user: References [36], [52] consider ordered Nakagami-m channels, while references [37], [50], [51] consider Rayleigh fading channel. Bariah et al [36], [37] derive upper bound BER expressions using the union bound of the PEPs assuming imperfect SIC.…”

Section: ) Various Number Of Usersmentioning

confidence: 99%

“…Assaf et al [52] derive exact BER closed-form BER expressions considering QPSK for all users. The authors of [50] propose integrating physical layer security with NOMA to degrade the performance of internal unknown eavesdroppers without affecting the legitimate users performance. The scheme is based on utilizing the random phase of the channel between the users and the base station, which is known to both ends but not to illegitimate users.…”

Section: ) Various Number Of Usersmentioning

confidence: 99%

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Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Yahya¹,

Ahmed²,

Alsusa³

et al. 2023

Preprint

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<div>Non-orthogonal multiple access (NOMA) has received an enormous attention in the recent literature due to its potential to improve the spectral efficiency of wireless networks. For several years, most of the research efforts on the performance analysis of NOMA were steered towards the ergodic sum rate and outage probability. More recently, error rate analysis of NOMA has attracted massive attention and sparked massive number of researchers whose aim was to evaluate the error rate of the various NOMA configurations and designs. Therefore, the large number of publications that appeared in a short time duration made highly challenging for the research community to identify the contribution of the different research articles. Therefore, this work aims at surveying the research work that considers NOMA error rate analysis and classifying the contributions of each work. Therefore, work redundancy and overlap can be minimized, research gabs can be identified, and future research directions can be outlined. Moreover, this work presents the principles of NOMA error rate analysis.</div>

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Section: ) Various Number Of Usersmentioning

confidence: 99%

Section: ) Various Number Of Usersmentioning

confidence: 99%

Section: ) Various Number Of Usersmentioning

confidence: 99%

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Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Yahya¹,

Ahmed²,

Alsusa³

et al. 2023

Preprint

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“…On the other hand, non-orthogonal multiple access (NOMA) allows multiple GUs to share link resource, and successiveinterference-cancellation (SIC) can be used in NOMA transmission to decode signals. Thus, NOMA transmission can achieve efficient utilization of spectrum and throughput improvement [15]- [18]. Abushattal et al pointed out that NO-MA transmission can highlight the performance of wireless communication system with low bandwidth requirement [18].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, NOMA transmission can achieve efficient utilization of spectrum and throughput improvement [15]- [18]. Abushattal et al pointed out that NO-MA transmission can highlight the performance of wireless communication system with low bandwidth requirement [18]. Driven by these advantages, NOMA is widely applied in UAV-MEC networks to provide flexible and convenient computation offloading service for large-scale access GUs [19]- [25].…”

Section: Introductionmentioning

confidence: 99%

Secure NOMA-Based UAV-MEC Network Towards a Flying Eavesdropper

Ding

Gao

et al. 2022

IEEE Trans. Commun.

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Non-orthogonal multiple access (NOMA) allows multiple users to share link resource for higher spectrum efficiency. It can be applied to unmanned aerial vehicle (UAV) and mobile edge computing (MEC) networks to provide convenient offloading computing service for ground users (GUs) with largescale access. However, due to the line-of-sight (LoS) of UAV transmission, the information can be easily eavesdropped in NOMA-based UAV-MEC networks. In this paper, we propose a secure communication scheme for the NOMA-based UAV-MEC system towards a flying eavesdropper. In the proposed scheme, the average security computation capacity of the system is maximized while guaranteeing a minimum security computation requirement for each GU. Due to the uncertainty of the eavesdropper's position, the coupling of multi-variables and the non-convexity of the problem, we first study the worst security situation through mathematical derivation. Then, the problem is solved by utilizing successive convex approximation (SCA) and block coordinate descent (BCD) methods with respect to channel coefficient, transmit power, central processing unit (CPU) computation frequency, local computation and UAV trajectory. Simulation results show that the proposed scheme is superior to the benchmarks in terms of the system security computation performance.

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