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Smart city article details

Title	Blockchain Empowered Smart Home: A Scalable Architecture For Sustainable Smart Cities
ID_Doc	12432
Authors	Aldribi A.; Singh A.
Year	2022
Published	Mathematics, 10, 14
DOI	http://dx.doi.org/10.3390/math10142378
Abstract	Emerging growth in technology has rapidly changed our homes and cities. Present homes and cities will be upgraded to smart homes and smart cities in the near future. Various solutions used to build the smart-city network demand a scalable and decentralized solution. This study proposes a blockchain-empowered decentralized and scalable solution for a sustainable smart-city network. The Internet of Things (IoT), fog nodes, permissioned trust chain, smart contract, blockchain, and InterPlanetary file system (IPFS) are deployed to construct a scalable and decentralized solution for a sustainable smart city. Three main public sector departments, i.e., electricity, water supply, and health care, are studied over the proposed solution. The proposed solution is implemented over constrained application protocol (CoAP) and Ethereum blockchain. The performance of the proposed model is evaluated for 1500 devices and over 10,000 records. A total 77.44% improvement is registered during performance evaluation over a scalable environment. The performance evaluation of each case study and collaborative performance evaluation concludes the improvised performance of the proposed solution for scalable and distributed applications. Better performance, scalability, and the distributed nature of the presented model make it suitable for the sustainable smart-city network. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
Author Keywords	blockchain; Internet of Things (IoT); sensors and fog computing; smart contract; smart home; sustainable smart city

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