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

Le, Chi‐Bao; Do, Dinh‐Thuan; Silva, Adão; Khan, Wali Ullah; Khalid, Waqas; Yu, Heejung; Nguyen, Nhan Duc

doi:10.1109/access.2021.3139118

Cited by 23 publications

(10 citation statements)

References 37 publications

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“…Alternatively, underwater optical wireless communication (UOWC) has been regarded as a promising technology due to the merits of sufficient bandwidth, high security, compact footprint, and low time latency. According to the researchers, one of the most important features of a 6G communication system will be the spectral and energy efficiencies [4]- [8]. Energy harvesting can play a vital role in achieving the energy efficiency feature in a wireless communication network and unravel a variety of problems that are impossible to solve by conventional battery-powered communication operations such as untethered mobility, monitoring in rural areas, and developed medical applications [7], [9].…”

Section: Wireless Communication Technologies Have Been Expandingmentioning

confidence: 99%

Physical-Layer Security in Mixed UOWC-RF Networks With Energy Harvesting Relay Against Multiple Eavesdroppers

Ghosh,

Kumar Kundu,

Ibrahim

et al. 2024

IEEE Open J. Commun. Soc.

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In this study, physical layer security (PLS) in a dual-hop underwater optical wireless communication (UOWC)-radio frequency (RF) network under the intruding attempts of multiple eavesdroppers via RF links is considered. An intermediate decode-and-forward (DF) relay node between an underwater source and a destination transforms the optical signal into an electrical form and forwards it to the destination node with the help of harvested energy by the relay from an integrated power beacon within the system. The source-to-relay link, i.e., a UOWC link, is assumed to follow a mixture of exponential generalized Gamma turbulence with pointing error impairments whereas all the remaining links, i.e., RF links, are assumed to undergo κ − µ shadowed fading. Here, two eavesdropping scenarios are considered depending on the types of intruders, i.e., colluding (Scenario-I) and non-colluding (Scenario-II) eavesdropping operations. The analytical expressions of secrecy outage probability (SOP), probability of strictly positive secrecy capacity (SPSC), and effective secrecy throughput (EST) are derived for each scenario. Furthermore, the impacts of UOWC and RF channel parameters as well as detection techniques on secrecy capacity are demonstrated. A comparative study between two scenarios demonstrates that the collusion between the eavesdroppers imposes the most harmful threat on secrecy throughput but a better secrecy level can be attained by adopting diversity at the destination and power beacon nodes along with heterodyne detection rather than intensity modulation and direct detection technique. Finally, all the derived expressions are verified with the numerical results.INDEX TERMS Effective secrecy throughput, underwater optical communication, secure outage probability, energy harvesting, colluding and non-colluding eavesdroppers.

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Section: Wireless Communication Technologies Have Been Expandingmentioning

confidence: 99%

Physical-Layer Security in Mixed UOWC-RF Networks With Energy Harvesting Relay Against Multiple Eavesdroppers

Ghosh,

Kumar Kundu,

Ibrahim

et al. 2024

IEEE Open J. Commun. Soc.

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“…PLS provision can be enabled by utilizing transmission parameters optimized specifically for the Rx link using independent fading. Because the signal intended for the Rx is optimized, it inherently provides security against jamming and eavesdropping attacks without requiring any additional processing or computation at the Rx [33], [34]. Furthermore, a more secure communication link can be established by adapting the link between the Tx and Rx via RIS (e.g., by adjusting the transmission parameters and the reflection characteristics).…”

Section: B Ris-aided Pls: Design Solutionsmentioning

confidence: 99%

Simultaneous Transmitting and Reflecting-Reconfigurable Intelligent Surface in 6G: Design Guidelines and Future Perspectives

Khalid¹,

Kaleem²,

Ullah³

et al. 2023

IEEE Network

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Sixth-generation (6G) networks pose substantial security risks because confidential information is transmitted over wireless channels with a broadcast nature, and various attack vectors emerge. Physical layer security (PLS) exploits the dynamic characteristics of wireless environments to provide secure communications, while reconfigurable intelligent surfaces (RISs) can facilitate PLS by controlling wireless transmissions. With RIS-aided PLS, a lightweight security solution can be designed for low-end Internet of Things (IoT) devices, depending on the design scenario and communication objective. This article discusses RIS-aided PLS designs for 6G-IoT networks against eavesdropping and jamming attacks. The theoretical background and literature review of RIS-aided PLS are discussed, and design solutions related to resource allocation, beamforming, artificial noise, and cooperative communication are presented. We provide simulation results to show the effectiveness of RIS in terms of PLS. In addition, we examine the research issues and possible solutions for RIS modeling, channel modeling and estimation, optimization, and machine learning. Finally, we discuss recent advances, including STAR-RIS and malicious RIS.

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“…Promising techniques like NOMA and AmBC jointly enable future IoT to make energy and spectrum-efficient transmission by connecting many IoT devices. Le et al [115] studied cognitive radio (CR)-based AmBC by enabling the NOMA technique. A BS can talk with two destination devices, and the relay node acts to collect, decode, and backscatter the source signal in the considered scenario.…”

Section: Performance Analysis Of Noma-bc Systemsmentioning

confidence: 99%

NOMA-Based Backscatter Communications: Fundamentals, Applications, and Advancements

Ahmed,

Shahwar,

Khan

et al. 2023

Preprint

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<p>This survey aims to bridge the gap by exploring NOMA-BC within B5G and 6G networks. We delve into its technical aspects, performance optimization techniques, and real-world applications to enhance understanding and knowledge. First, we cover topics such as enhancing EE, maximizing the sum rates, ensuring security, and optimizing resource allocation. Our primary goal is to provide researchers and practitioners with valuable insights that enable them to grasp the capabilities and benefits of NOMA-BC. To achieve this, we comprehensively analyze various schemes' performance by presenting detailed summary tables. These analyses cover a range of scenarios, methods, and objectives, focusing on emerging B5G technologies such as reconfigurable intelligent surfaces (RIS), visible light communication (VLC), and unmanned aerial vehicle (UAV) communication. By examining NOMA-BC's effectiveness within these contexts, we aim to provide a holistic view of its potential and applicability in diverse technological domains. Moreover, our survey identifies and discusses open research challenges and proposes future directions to guide researchers toward unexplored areas and facilitate advancements in NOMA-BC.</p>

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

Cited by 23 publications

References 37 publications

Physical-Layer Security in Mixed UOWC-RF Networks With Energy Harvesting Relay Against Multiple Eavesdroppers

Physical-Layer Security in Mixed UOWC-RF Networks With Energy Harvesting Relay Against Multiple Eavesdroppers

Simultaneous Transmitting and Reflecting-Reconfigurable Intelligent Surface in 6G: Design Guidelines and Future Perspectives

NOMA-Based Backscatter Communications: Fundamentals, Applications, and Advancements

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