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Article

The Green Blockchains of Circular Economy

1
Foundation for Research and Technology-Hellas, 70013 Heraklion, Greece
2
Department of Electrical and Computer Engineering, Hellenic Mediterranean University (HMU), 71410 Heraklion, Greece
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Department of Electrical and Computer Engineering, Technical University of Crete, 73100 Chania, Greece
4
Sphynx Technology Solutions AG, 6300 Zug, Switzerland
*
Author to whom correspondence should be addressed.
Academic Editor: Juan-Carlos Cano
Electronics 2021, 10(16), 2008; https://doi.org/10.3390/electronics10162008
Received: 30 June 2021 / Revised: 3 August 2021 / Accepted: 17 August 2021 / Published: 19 August 2021
Eco-friendly systems are necessitated nowadays, as the global consumption is increasing. A data-driven aspect is prominent, involving the Internet of Things (IoT) as the main enabler of a Circular Economy (CE). Henceforth, IoT equipment records the system’s functionality, with machine learning (ML) optimizing green computing operations. Entities exchange and reuse CE assets. Transparency is vital as the beneficiaries must track the assets’ history. This article proposes a framework where blockchaining administrates the cooperative vision of CE-IoT. For the core operation, the blockchain ledger records the changes in the assets’ states via smart contracts that implement the CE business logic and are lightweight, complying with the IoT requirements. Moreover, a federated learning approach is proposed, where computationally intensive ML tasks are distributed via a second contract type. Thus, “green-miners” devote their resources not only for making money, but also for optimizing operations of real-systems, which results in actual resource savings. View Full-Text
Keywords: blockchain; federated learning; circular economy; green-miner; time-wise offloading; green computing blockchain; federated learning; circular economy; green-miner; time-wise offloading; green computing
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MDPI and ACS Style

Hatzivasilis, G.; Ioannidis, S.; Fysarakis, K.; Spanoudakis, G.; Papadakis, N. The Green Blockchains of Circular Economy. Electronics 2021, 10, 2008. https://doi.org/10.3390/electronics10162008

AMA Style

Hatzivasilis G, Ioannidis S, Fysarakis K, Spanoudakis G, Papadakis N. The Green Blockchains of Circular Economy. Electronics. 2021; 10(16):2008. https://doi.org/10.3390/electronics10162008

Chicago/Turabian Style

Hatzivasilis, George, Sotiris Ioannidis, Konstantinos Fysarakis, George Spanoudakis, and Nikos Papadakis. 2021. "The Green Blockchains of Circular Economy" Electronics 10, no. 16: 2008. https://doi.org/10.3390/electronics10162008

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