Security Improvement With QoS Provisioning Using Service Priority and Power Allocation for NOMA-IoT Networks

Khalid, Waqas; Yu, Heejung

doi:10.1109/access.2021.3049258

Cited by 21 publications

(7 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…NOMA architecture for multiple access is therefore much better than traditional Multiple Access Orthogonal (OMA) strategies whereby the networks for each orthogonal resource block are allowed to access by only one user (i.e., time slot, spread code, or frequency channel). The NOMA system is demonstrated to be more spectrum-efficient than traditional OMA systems if one of its users is far from the base station (BS) [20], [21]. In the work of [22], the ambient backscatter NOMA systems was explored under the realistic considerations of channel estimation errors (CEEs), residual hardware impairments (RHIs) and imperfect successive interference cancellation (ipSIC) with main metrics of reliability and security.…”

Section: A Related Workmentioning

confidence: 99%

Joint Design of Improved Spectrum and Energy Efficiency With Backscatter NOMA for IoT

Silva

et al. 2022

IEEE Access

Self Cite

View full text Add to dashboard Cite

To develop emerging transmission techniques for potential applications of Internet of Things (IoT), the system performance analysis of a cognitive radio (CR)-enabled ambient backscatter (AmBC) system will be studied in this paper with functionality of non-orthogonal multiple access (NOMA). In the proposed scheme, a base station communicates with two destinations via a designated backscatter device. It is assumed that the relay node is fitted with two different interfaces and can simultaneously collect/decode and backscatter the received source signals. Such transmission mechanism benefits to design various applications in IoT as well as wireless systems with improved performance. To exhibit system performance metrics, the outage probability and the ergodic capacity of the recipient nodes are derived analytically. Furthermore, it is shown that employing AmBC NOMA together with CR for secondary communication can significantly improve overall network performance in terms of the achievable throughput in delaylimited and delay-tolerant modes and outage probability. Numerical results show that: 1) The proposed system can improve the spectrum efficiency by employing both CR and NOMA techniques; 2) Compared with the orthogonal multiple access (OMA)-aided AmBC systems, the considered CR AmBC system relying on NOMA can obtain better reliability in the whole range of SNR; 3) There are error floors for the outage probability in the high SNR regime due to required target rates; 4) There exists a trade-off between system performance of IoT devices and power allocation coefficients associated with NOMA; 5) We find energy efficiency factor as evident of further improvement in such system.

show abstract

Section: A Related Workmentioning

confidence: 99%

Joint Design of Improved Spectrum and Energy Efficiency With Backscatter NOMA for IoT

Silva

et al. 2022

IEEE Access

Self Cite

View full text Add to dashboard Cite

show abstract

“…The use of HSTRNs is required for the seamless integration of terrestrial cellular and satellite communications. Moreover, more users are simultaneously served using NOMA, and different performance types or services are observed among these users [ 14 ]. In the third paper, titled Hybrid Satellite-Terrestrial Relay Network: Proposed Model and Application of Power Splitting Multiple Access [ 15 ], the authors considered the requirements of both performance and energy efficiency (EE) for the future satellite communications, and provided an indepth performance evaluation of NOMA-enabled HSTRNs with a wireless-powered (i.e., energy harvesting) terrestrial relay.…”

Section: Brief Review Of Technical Papersmentioning

confidence: 99%

Advanced Physical-Layer Technologies for Beyond 5G Wireless Communication Networks

Khalid

Ali

et al. 2021

Sensors

Self Cite

View full text Add to dashboard Cite

Fifth-generation (5G) networks will not satisfy the requirements of the latency, bandwidth, and traffic density in 2030 and beyond, and next-generation wireless communication networks with revolutionary enabling technologies will be required. Beyond 5G (B5G)/sixth-generation (6G) networks will achieve superior performance by providing advanced functions such as ultralow latency, ultrahigh reliability, global coverage, massive connectivity, and better intelligence and security levels. Important aspects of B5G/6G networks require the modification and exploitation of promising physical-layer technologies. This Special Issue (SI) presents research efforts to identify and discuss the novel techniques, technical challenges, and promising solution methods of physical-layer technologies with a vision of potential involvement in the B5G/6G era. In particular, this SI presents innovations and concepts, including nonorthogonal multiple access, massive multiple-input multiple-output (MIMO), energy harvesting, hybrid satellite terrestrial relays, Internet of Things-based home automation, millimeter-wave bands, device-to-device communication, and artificial-intelligence or machine-learning techniques. Further, this SI covers the proposed solutions, including MIMO antenna design, modulation detection, interference management, hybrid precoding, and statistical beamforming along with their performance improvements in terms of performance metrics, including bit error rate, outage probability, ergodic sum rate, spectrum efficiency, and energy efficiency.

show abstract

“…The associate editor coordinating the review of this manuscript and approving it for publication was X. non-orthogonal multiple access (NOMA) [4], ultra-dense small cells deployment [5], millimeter wave (mmWave) bands [6], and cognitive radio (CR) networks [7], [8]. Despite these revolutionary technologies, 5G cannot meet all the requirements.…”

Section: Introductionmentioning

confidence: 99%

Rate-Energy Tradeoff Analysis in RIS-SWIPT Systems With Hardware Impairments and Phase-Based Amplitude Response

Khalid

Cho

et al. 2022

IEEE Access

Self Cite

View full text Add to dashboard Cite

This paper investigates the reconfigurable intelligent surface (RIS)-empowered dynamic power splitting designs for simultaneous wireless information and power transfer (SWIPT) systems while adopting various practical hardware issues. Specifically, we adopt the physical size of the RIS and the placement of the RIS plane to phase-align the reflected signals towards the desired direction. The analytical phase shift model for the reflecting elements is presented to characterize an intertwined relationship between amplitude and phase responses, which captures the amplitude variations depending on phase in RIS elements. Furthermore, an additive distortion noise incorporates the residual transceiver hardware impairments (RTHIs). The stringent signal-to-interference-plus-noise ratio requirement is facilitated using both the direct and indirect, i.e., RIS cascaded, links. To made complicated analysis become tractable, we exploit the statistical properties of the effective channel power which follows a Gamma distribution. The tight bounds for the achievable rates and residual energy are derived and the tradeoffs between the achievable rate and residual energy for the time switching and static power splitting designs are characterized. Finally, the numerical results confirm the accuracy of the developed framework and demonstrate the selection of the system parameters.INDEX TERMS RIS, SWIPT, RTHIs, phase-dependent amplitude response, rate-residual energy tradeoffs.

show abstract

Security Improvement With QoS Provisioning Using Service Priority and Power Allocation for NOMA-IoT Networks

Cited by 21 publications

References 32 publications

Joint Design of Improved Spectrum and Energy Efficiency With Backscatter NOMA for IoT

Joint Design of Improved Spectrum and Energy Efficiency With Backscatter NOMA for IoT

Advanced Physical-Layer Technologies for Beyond 5G Wireless Communication Networks

Rate-Energy Tradeoff Analysis in RIS-SWIPT Systems With Hardware Impairments and Phase-Based Amplitude Response

Contact Info

Product

Resources

About