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Title	A Review Of Blockchain-Based On Iot Applications (Challenges And Future Research Directions)
ID_Doc	4129
Authors	Hasan W.K.A.; Abood A.M.; Habbal M.
Year	2020
Published	CITISIA 2020 - IEEE Conference on Innovative Technologies in Intelligent Systems and Industrial Applications, Proceedings
DOI	http://dx.doi.org/10.1109/CITISIA50690.2020.9371814
Abstract	Internet of Things is defined as the framework of interconnected computing systems, mechanical and digital appliances, objects, animals, or people that are equipped with specific identifiers as well as the ability to transfer data over networks. Such devices will not require human-to-human or human-to-computer interaction. This technology has emerged with a Blockchain, which has been used in cryptocurrency, to enhance the performance of security and decrease costs. Although emerging Blockchain with IoT has improved the entire system design. It still faces a number of issues relevant to time latency, anonymity, power efficiency, and big data. Blockchain has been used in various applications such as Healthcare, smart homes, and smart cities. In this paper, we will briefly define the idea of Blockchain including the definition of Blockchain, its types, advantages, and disadvantages, and then present some challenges of Blockchain-based applications on the Internet of things where we focus on Healthcare, smart homes, and smart cities. Finally, some future work direction will be introduced. © 2020 IEEE.
Author Keywords	Blockchain; Cloud; Healthcare; IoT; Privacy; Security; Smart city; Smart home

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