Secure LoRa-IoT Data Transmission via Ethereum Smart Contracts: A Blockchain-Integrated Architecture

Abstract

This paper presents a novel approach to enhancing the security of Internet of Things (IoT) data by integrating Long Range (LoRa) communication with Ethereum-based blockchain smart contracts. Our system collects environmental data from IoT nodes using LoRaWAN and leverages smart contracts on the Ethereum blockchain to ensure data immutability, traceability, and trustless validation. We demonstrate the feasibility of our architecture through a full-stack implementation using Dragino hardware, The Things Network (TTN), MetaMask, Web3, and Solidity. Experimental results show that our system is effective for secure, decentralized, and transparent IoT data management.