An Efficient Lightweight Blockchain for Decentralized IoT

• URL: http://arxiv.org/abs/2508.19219v1
• Date: Tue, 26 Aug 2025 17:36:45 GMT
• Title: An Efficient Lightweight Blockchain for Decentralized IoT
• Authors: Faezeh Dehghan Tarzjani, Mostafa Salehi,
• Abstract summary: The Internet of Things (IoT) is applied in various fields, and the number of physical devices connected to the IoT is increasingly growing.<n>There are significant challenges to the IoT's growth and development, mainly due to the centralized nature and large-scale IoT networks.<n>A promising decentralized platform for IoT is blockchain.
• Score: 0.19336815376402716
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The Internet of Things (IoT) is applied in various fields, and the number of physical devices connected to the IoT is increasingly growing. There are significant challenges to the IoT's growth and development, mainly due to the centralized nature and large-scale IoT networks. The emphasis on the decentralization of IoT's architecture can overcome challenges to IoT's capabilities. A promising decentralized platform for IoT is blockchain. Owing to IoT devices' limited resources, traditional consensus algorithms such as PoW and PoS in the blockchain are computationally expensive. Therefore, the PoA consensus algorithm is proposed in the blockchain consensus network for IoT. The PoA selects the validator as Turn-based selection (TBS) that needs optimization and faces system reliability, energy consumption, latency, and low scalability. We propose an efficient, lightweight blockchain for decentralizing IoT architecture by using virtualization and clustering to increase productivity and scalability to address these issues. We also introduce a novel PoA based on the Weight-Based-Selection (WBS) method for validators to validate transactions and add them to the blockchain. By simulation, we evaluated the performance of our proposed WBS method as opposed to TBS. The results show reduced energy consumption, and response time, and increased throughput.

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