NC-LoRaSim: A No-Code LoRaWAN Simulation Framework with NS-3

The Internet of Things (IoT) enables smart cities, efficient logistics, and intelligent infrastructure. Low-Power Wide Area Networks (LPWANs), such as LoRaWAN, offer long-range connectivity with low energy consumption; however, designing and testing these networks often requires programming skills, which can limit accessibility. This paper presents NC-LoRaSim, a No Code LoRaWAN simulation platform based on NS-3, suitable for users with varying backgrounds. It offers three operation modes: Manual, for step-by-step scenario configuration; Automatic, for running simulations under multiple predefined parameters; and Advanced, which allows users, like researchers with basic C++ knowledge, to develop and evaluate new protocols using pre-built functions. A user-friendly interface and real-time terminal simplify parameter selection and result visualization. By combining NS-3’s modeling capabilities with an intuitive interface, NC-LoRaSim enables students, engineers, and researchers to explore, analyze, and optimize LoRaWAN networks without extensive programming, bridging usability and technical depth.