PGS-BFT: A Pipeline-Based Graph Structure Byzantine Fault Tolerance Consensus Algorithm DOI
Jingwen Chen, Yang Liu, Xinlei Liu

et al.

Published: Nov. 17, 2023

The Byzantine fault-tolerant (BFT) consensus algorithm is widely used in blockchain systems due to its ability tolerate malicious nodes and ensure system consistency. However, existing protocols still face significant challenges. This paper proposes a pipeline-based graph structure Fault Tolerant (PGS-BFT) algorithm. It leverages parallel pipeline execution accelerate block generation efficiency. By synchronizing dependencies among nodes, all validated blocks eventually form an ordered within cycle, enabling achieve final consensus. proposed PGS-BFT effectively improves efficiency reduces transaction latency while ensuring security. can be applied consortium platforms.

Language: Английский

The role of blockchain technology in telehealth and telemedicine DOI Open Access
Raja Wasim Ahmad, Khaled Salah, Raja Jayaraman

et al.

International Journal of Medical Informatics, Journal Year: 2021, Volume and Issue: 148, P. 104399 - 104399

Published: Jan. 28, 2021

Language: Английский

Citations

204

Blockchain-Based Forward Supply Chain and Waste Management for COVID-19 Medical Equipment and Supplies DOI Creative Commons
Raja Wasim Ahmad, Khaled Salah, Raja Jayaraman

et al.

IEEE Access, Journal Year: 2021, Volume and Issue: 9, P. 44905 - 44927

Published: Jan. 1, 2021

The year 2020 has witnessed unprecedented levels of demand for COVID-19 medical equipment and supplies. However, most today's systems, methods, technologies leveraged handling the forward supply chain waste that results from them after usage are inefficient. They fall short in providing traceability, reliability, operational transparency, security, trust features. Also, they centralized can cause a single point failure problem. In this paper, we propose decentralized blockchain-based solution to automate processes enable information exchange among all stakeholders involved their management manner is fully secure, transparent, traceable, trustworthy. We integrate Ethereum blockchain with storage interplanetary file systems (IPFS) securely fetch, store, share data related management. develop algorithms define interaction rules regarding penalties be imposed on case violations. present system design along its full implementation details. evaluate performance proposed using cost analysis show affordability. security verify reliability smart contracts, discuss our generalization applicability view. Furthermore, outline limitations form open challenges act as future research directions. make contracts code publicly available GitHub.

Language: Английский

Citations

135

Blockchain integration in healthcare: a comprehensive investigation of use cases, performance issues, and mitigation strategies DOI Creative Commons
Meenavolu S. B. Kasyapa,

C. Vanmathi

Frontiers in Digital Health, Journal Year: 2024, Volume and Issue: 6

Published: April 26, 2024

Healthcare is a critical area where blockchain technology (BT) being heralded as potential game-changer for facilitating secure and efficient data sharing. The purpose of this review to examine BT applications, performance challenges, solutions in healthcare. To begin, This paper explores popular networks exchange, encompassing both public permissioned platforms, such Ethereum Hyperledger Fabric. analyzes the applications BT’s decentralized, immutable, smart contract capabilities healthcare settings, including interoperable health patient consent management, drug supply chain oversight, clinical trial management. industry might greatly benefit from increased privacy, transparency, accessibility that these technologies provide. Despite promising medical uses, not without its drawbacks. High energy consumption, throughput, scalability are all concerns. We wrapped up by discussing have been implemented, consensus processes, measures like sharding, off-chain transactions designed mitigate

Language: Английский

Citations

14

Digital transformation for sustainable health and well-being: a review and future research directions DOI Creative Commons

Khizar Hameed,

Ranesh Kumar Naha,

Faisal Hameed

et al.

Discover Sustainability, Journal Year: 2024, Volume and Issue: 5(1)

Published: May 30, 2024

Abstract Ensuring good health and well-being is one of the crucial Sustainable Development Goals (SDGs) that aims to promote healthy lives for people all ages. This involves providing affordable environmentally friendly medical services public fairly equitably. Good goals include achieving fair outcomes strong healthcare systems. It also highlights importance integrating sustainable considerations into policy frameworks developing countries, which are established address social factors influence health. Regarding reform, Information Communication Technologies (ICTs) play a pivotal role as key enablers improve patient access, treatment quality, system efficiency. shift in focus significance fostering digital accessibility, sustainability, inventiveness, cybersecurity, leadership. Nevertheless, incorporating progressively advancing ICT technology systems, sometimes called transformation, not simple. However, some challenges arise integration, application design, security measures. While numerous studies have been suggested tackle technologies these had limited scope considered several factors. Therefore, there pressing need an extensive research study focusing on integration technologies, design challenges, privacy areas, potential positive negative effects. this paper contributes literature covering important SDG, “Good well-being,” its along with summarising our findings detailed taxonomical way. First, we analyze all-encompassing taxonomy prior well-being, emphasizing healthcare, specifically applications associated Electronic Health (E-Health), future avenues exploration. Then, explore transformation significant components, highlight E-Health’s benefits, categorize challenges. Next, determine Blockchain Technology today’s leading E-Health. We discuss characteristics, describe possible types Blockchain-based E-Health use cases. Furthermore, compare impacts identify open issues directions, strengthening researchers solutions.

Language: Английский

Citations

9

Block-HPCT: Blockchain Enabled Digital Health Passports and Contact Tracing of Infectious Diseases like COVID-19 DOI Creative Commons
Md Mamunur Rashid, Piljoo Choi, Suk‐Hwan Lee

et al.

Sensors, Journal Year: 2022, Volume and Issue: 22(11), P. 4256 - 4256

Published: June 2, 2022

Due to its significant global impact, both domestic and international efforts are underway cure the infection stop COVID-19 virus from spreading further. In resource-limited environments, overwhelmed healthcare institutions surveillance systems struggling cope with this epidemic, necessitating a specific strategic response. study, we looked into situation establish trust, accountability, transparency, employed blockchain's immutable tamper-proof properties. We offered smart contract (SC)-based solution (Block-HPCT) that has been successfully tested preserve digital health passport (DHP) for vaccine recipients; also, contact tracing (CT) proof of location concept, which aids in swift credible response directly appropriate authorities. To connect on-chain off-chain data, trusted registered oracles were integrated provide double layer security along symmetric key encryption; Interplanetary File System (IPFS) Hyperledger Fabric merged as storage center. also provided full description suggested solution's system design, implementation, experiment results, evaluation (privacy cost analysis). As per findings, approach performed satisfactorily across all assessment criteria, implying it can lead way practical implementations be used similar types situations where infectious crucial.

Language: Английский

Citations

24

Blockchain for Food Industry: Opportunities, Requirements, Case Studies, and Research Challenges DOI Creative Commons
Raja Wasim Ahmad, Kwangman Ko, Ammar Rashid

et al.

IEEE Access, Journal Year: 2024, Volume and Issue: 12, P. 117363 - 117378

Published: Jan. 1, 2024

Language: Английский

Citations

5

Application of Blockchain Technology in Emergency Management Systems: A Bibliometric Analysis DOI Creative Commons
Ruslan Shevchuk, Ihor Lishchynskyy, Marcin Ciura

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(10), P. 5405 - 5405

Published: May 12, 2025

Blockchain technology has emerged as a transformative solution to address specific aspects of emergency management systems by providing decentralized and distributed ledger infrastructure that enhances data immutability, transparency, traceability. This study presents comprehensive bibliometric analysis blockchain applications in covering the period from 2017 2024 based on 248 research articles indexed Web Science Core Collection. The examines collaboration networks, co-citation patterns, citation bursts, keyword trends uncover key clusters emerging themes. Seven major were identified, with their intellectual core built around influential publications highlight blockchain’s role improving efficiency, trust response systems. findings emphasize growing impact enhancing preparedness resilience during crises while identifying gaps global interdisciplinary innovation.

Language: Английский

Citations

0

Technological trends in epidemic intelligence for infectious disease surveillance: a systematic literature review DOI Creative Commons

Hazeeqah Amny Kamarul Aryffin,

Murtadha Arif Bin Sahbudin,

Sakinah Ali Pitchay

et al.

PeerJ Computer Science, Journal Year: 2025, Volume and Issue: 11, P. e2874 - e2874

Published: May 6, 2025

Background This research focuses on improving epidemic monitoring systems by incorporating advanced technologies to enhance the surveillance of diseases more effectively than before. Considering drawbacks associated with methods in terms time consumption and efficiency, issues highlighted this study includes integration Artificial Intelligence (AI) early detection, decision support predictive modeling, big data analytics sharing, contact tracing countering misinformation, Internet Things (IoT) devices real disease Geographic Information Systems (GIS) for geospatial artificial intelligence (GeoAI) applications mapping. The increasing intricacy regular occurrence outbreaks underscore pressing necessity improvements public health systems. delves into developments their utilization detecting handling infectious while exploring how these progressions contribute making policy development, healthcare. Methodology review systematically analyzes technological tools are being used conducting a structured search across online literature databases applying eligibility criteria identify relevant studies current trends surveillance. Results reviewed 69 articles from 2019 2023 focusing emerging intelligence. Most emphasized like analytics, geographic information systems, diseases. Conclusions expansion publicly accessible internet has opened new pathway emphasizes importance integrating technology such as AI, GIS, IoT track Combining helps agencies responding threats.

Language: Английский

Citations

0

Towards maintaining confidentiality and anonymity in secure blockchain-based e-voting DOI

Husni Abed,

Omar Mahmoud Al Zoubi,

Hashem Alayan

et al.

Cluster Computing, Journal Year: 2023, Volume and Issue: 27(4), P. 4635 - 4657

Published: Nov. 30, 2023

Language: Английский

Citations

6

COVID-19 Contact Tracing Using Blockchain DOI Creative Commons

Haya R. Hasan,

Khaled Salah, Raja Jayaraman

et al.

IEEE Access, Journal Year: 2021, Volume and Issue: 9, P. 62956 - 62971

Published: Jan. 1, 2021

Contact tracing has widely been adopted to control the spread of Coronavirus-2019 (COVID-19). It enables identify, assess, and manage people who have exposed COVID-19, thereby preventing from its further transmission. Today's most contact approaches, tools, solutions fall short in providing decentralized, transparent, traceable, immutable, auditable, secure, trustworthy features. In this paper, we propose a decentralized blockchain-based COVID-19 solution. can greatly suffice need for speedy response pandemic. We leverage immutable tamper-proof features blockchain enforce trust, accountability, transparency. Trusted registered oracles are used bridge gap between on-chain off-chain data. With no third parties involved or centralized servers, users' medical information is not prone invasion, hacking, abuse. Each user using their digital passports. To respect privacy users, locations updated with time delay 20 minutes. Using Ethereum smart contracts, transactions executed emitted events logs. present details implemented algorithms testing analysis. evaluate proposed approach security, cost, parameters show effectiveness. The contracts code publicly made available on GitHub.

Language: Английский

Citations

11