A Survey on Blockchain-based IoMT Systems: Towards Scalability

Autor: Seyed Farhad Aghili, Amirhossein Adavoudi Jolfaei, Dave Singelée
Rok vydání: 2021
Předmět:
blockchain
Technology
Blockchain
General Computer Science
Computer science
media_common.quotation_subject
Internet of Things
Wireless communication
Wearable computer
Cloud computing
THINGS
Internet of Medical Things (IoMT)
security
DATA-SECURITY
Domain (software engineering)
Engineering
cloud
General Materials Science
Quality (business)
INTERNET
SCALABLE BLOCKCHAIN
scalability
media_common
IOT
Science & Technology
Computer Science
Information Systems
CHALLENGES
business.industry
General Engineering
healthcare
Engineering
Electrical & Electronic
Benchmarking
ENABLING TECHNOLOGIES
Blockchains
FRAMEWORK
ELECTRONIC HEALTH RECORDS
TK1-9971
Risk analysis (engineering)
Scalability
Computer Science
Medical services
Telecommunications
The Internet
Electrical engineering. Electronics. Nuclear engineering
ACCESS-CONTROL
business
Zdroj: IEEE Access
IEEE Access, Vol 9, Pp 148948-148975 (2021)
ISSN: 2169-3536
DOI: 10.1109/access.2021.3117662
Popis: Recently, blockchain-based Internet of Medical Things (IoMT) has started to receive more attention in the healthcare domain as it not only improves the care quality using real-time and continuous monitoring but also minimizes the cost of care. However, there is a clear trend to include many entities in IoMT systems, such as IoMT sensor nodes, IoT wearable medical devices, patients, healthcare centers, and insurance companies. This makes it challenging to design a blockchain framework for these systems where scalability is a most critical factor in blockchain technology. Motivated by this observation, in this survey we review the state-of-the-art in blockchain-IoMT systems. Comparison and analysis of such systems prove that there is a substantial gap, which is the negligence of scalability. In this survey, we discuss several approaches proposed in the literature to improve the scalability of blockchain technology, and thus overcoming the above mentioned research gap. These approaches include on-chain and off-chain techniques, based on which we give recommendations and directions to facilitate designing a scalable blockchain-based IoMT system. We also recommended that a designer considers the well-known trilemma along with the various dimensions of a scalable blockchain system to prevent sacrificing security and decentralization as well. Moreover, we raise several research questions regarding benchmarking; addressing these questions could help designers determining the existing bottlenecks, leading to a scalable blockchain.
Databáze: OpenAIRE
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