Amirkabir University of Technology AUT Journal of Electrical Engineering 2588-2910 58 Special Issue 1 2026 05 01 Designing an Efficient Blockchain-Enabled Internet of Things (IoT) framework for Smart Farming 3 16 5832 10.22060/eej.2025.24288.5673 EN Tsegazewold Kinfu Electrical and Computer Engineering, Hawassa University Institute of Technology(HUIoT), Hawassa, Ethiopia Yirga Yayeh Department of Information Technology, Injibara University, Injibara, Ethiopia, National Yang Ming Chiao Tung University, Taiwan 0000-0001-6057-9622 Yechale Amogne Electrical and Computer Engineering, Woldia Institute of Technology(WiT), Woldia, Ethiopia 0009-0002-9418-2679 Emiyamrew Azmeraw Computer Engineering, University of Gondar, Gondar, Ethiopia Ayodeji Olalekan Salau Department of Electrical/Electronics and Computer Engineering, Afe Babalola University, Ado-Ekiti, Nigeria Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India 0000-0002-6264-9783 Journal Article 2025 06 14 In recent years, with the development of emerging technologies in developing countries, smart farming and pre- cision agriculture are more and more popular, especially using blockchain Internet of Things (IoT) system. In this study, we pro- pose a four-layer architecture for designing a blockchain-based IoT system in the domain of smart farming. The architecture comprises device nodes, fog nodes, a cloud server, and end users. Hyperledger Fabric is employed as the underlying blockchain framework, ensuring permissioned access and secure data man- agement. Additionally, we incorporate Role-Based Access Con- trol (RBAC) to further enhance security. Through performance analysis, including measures such as throughput and latency, we evaluate the system’s efficiency and responsiveness. The results demonstrate the benefits of using Hyperledger Fabric and a permissioned blockchain approach in smart farming, providing valuable insights for stakeholders and farmers seeking secure and reliable IoT solutions for agricultural practices. https://eej.aut.ac.ir/article_5832_677fa4059ee76333f9bb9a7920aef719.pdf