CUED Publications database

Blockchain at the Edge: Performance of Resource-Constrained IoT Networks

Misra, S and Mukherjee, A and Roy, A and Saurabh, N and Rahulamathavan, Y and Rajarajan, M (2021) Blockchain at the Edge: Performance of Resource-Constrained IoT Networks. IEEE Transactions on Parallel and Distributed Systems, 32. pp. 174-183. ISSN 1045-9219

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© 1990-2012 IEEE. The proliferation of IoT in various technological realms has resulted in the massive spurt of unsecured data. The use of complex security mechanisms for securing these data is highly restricted owing to the low-power and low-resource nature of most of the IoT devices, especially at the Edge. In this article, we propose to use blockchains for extending security to such IoT implementations. We deploy a Ethereum blockchain consisting of both regular and constrained devices connecting to the blockchain through wired and wireless heterogeneous networks. We additionally implement a secure and encrypted networked clock mechanism to synchronize the non-real-time IoT Edge nodes within the blockchain. Further, we experimentally study the feasibility of such a deployment and the bottlenecks associated with it by running necessary cryptographic operations for blockchains in IoT devices. We study the effects of network latency, increase in constrained blockchain nodes, data size, Ether, and blockchain node mobility during transaction and mining of data within our deployed blockchain. This study serves as a guideline for designing secured solutions for IoT implementations under various operating conditions such as those encountered for static IoT nodes and mobile IoT devices.

Item Type: Article
Divisions: Div E > Manufacturing Systems
Depositing User: Cron Job
Date Deposited: 26 Aug 2020 21:17
Last Modified: 04 Mar 2021 04:12
DOI: 10.1109/TPDS.2020.3013892