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The ever-increasing number of IoT devices necessitates a secure and scalable infrastructure to store and process generated data. Blockchain is an ideal choice with its decentralized, trustless architecture. However, low-power IoT end-devices do not possess enough horsepower to run a software client for intensive blockchain calculations. The purpose of this paper is to create a proof of concept to enable low-power, resource-constrained IoT end-devices accessing a blockchain-based infrastructure. To achieve this aim, an IoT gateway is configured as a blockchain node and an event-based messaging mechanism for low-power IoT end-devices is proposed. A demonstration of such a system is realized using LoRa nodes and gateway in a private Ethereum network.
Özyılmaz et al. (Sun,) studied this question.