International Journal of Scientific Research and Engineering Development

This paper presents a Smart Grid Communication System using LoRa and MQTT protocols to achieve reliable, low- power, and long-range data transmission for modern power networks. The proposed system enables real-time monitoring and control of smart grid components through an IoT-based communication framework. LoRa technology is utilized to provide energy-efficient wireless communication between field devices and gateways over long distances. The MQTT protocol ensures lightweight, fast, and secure data exchange between gateways and cloud servers. The system supports bidirectional communication, allowing remote monitoring, control, and automation of grid operations. Key grid parameters such as voltage, current, power consumption, and device status are continuously collected and transmitted. A cloud-based platform is integrated for data storage, visualization, and performance analysis. The design improves scalability while reducing communication cost and infrastructure complexity. Performance evaluation demonstrates enhanced reliability, low latency, and reduced power consumption compared to conventional methods. The proposed approach offers a practical and scalable solution for intelligent monitoring and automation in smart grid environments.

Jayabharathi S, Niranjana V, Rupasree P, Mr.R.Manikandan,"Smart Grid Communication System Using Lora and Mqtt Protocols" International Journal of Scientific Research and Engineering Development, V9(2): Page(2108-2113) Mar-Apr 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.