Title: IoT technologies, applications and challenges, blockchain and its role in IoT: a survey

Authors: S. Muthulakshmi; R. Chitra

Addresses: Computer Science and Engineering, Noorul Islam Centre for Higher Education, Kumaracoil, Thuckalay, India ' Computer Science and Engineering, Karunya Institute of Technology and Sciences, Coimbatore, India

Abstract: The IoT is the next epoch of communication. It is a very unique platform which is getting well liked for everyone. The major reason for this to happen is the advancement in technology and its potential to get connected to everything. The IoT gives us an opportunity to build effective administrations, applications for manufacturing and more. The existing and forthcoming IoT applications are favourably hopeful to increase the level of comfort, efficiency and automation. To implement such a world in an ever increasing fashion requires high security, privacy, authentication and recovery from attacks. Existing technologies are not enough to achieve that. Blockchain addresses the solutions to the above security issues of IoT. Blockchain technology attracts all industries by its decentralised architecture. The main aim of this paper is how the system becomes powerful while integrating blockchain with an IoT application. This paper explains various architectures of IoT and explains various technologies used as IoT solutions. It also explains about the IoT applications and its challenges. Finally, how the blockchain technology is used to overcome the challenges in IoT applications is discussed.

Keywords: internet of things; IoT; layered architectures; technologies; IoT applications; challenges; blockchain.

DOI: 10.1504/IJITST.2022.124476

International Journal of Internet Technology and Secured Transactions, 2022 Vol.12 No.4, pp.321 - 352

Received: 09 Nov 2020
Accepted: 03 Sep 2021

Published online: 27 Jul 2022 *

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