COOPERATIVE TRANSMISSION OF LARGE FILES OVER LORA IN MULTIMEDIA IOT NETWORKS

Abstract

The increasing use of Multimedia Internet of Things (MIoT) devices in remote areas requires effective multimedia data transfer over large, energy-limited wireless networks. While Low-Power Wide-Area Networks (LPWANs), especially those utilizing LoRa (Long Range) technology, offer a promising solution with their broad coverage and energy efficiency, they are not well-suited for transmitting large amounts of multimedia data as they were originally designed for small-scale sensor data. This thesis presents a new approach that enhances the ability of LoRa networks to effectively handle large-scale multimedia data. We propose an algorithm that improves data transmission efficiency by encouraging cooperation among neighboring devices. The effectiveness of our algorithm is confirmed through detailed theoretical and practical evaluation, showing major improvements over method that evenly distributes the data between neighbors. It performs exceptionally well in challenging environments with different success rates and spreading factors, proving to be reliable under heavier data loads and achieving better overall data transmission times.