This video explains all useful information about the LoRaWAN protocol. You will understand the LoRa modulation with the channels, bandwidth, coding rate and Spreading Factor. Then you will understand how you can communicate with thousands of end-devices using the frequency multiplexing, the Chirp Spread Spectrum and the duty cycle. The next chapter is to present the different network architecture that could be public, private or hybrid. For any of them, the network infrastructure is the same with the end-device, the LoRaWAN gateway and finally the Network Server and Application Server. If you want to increase your network coverage, you will be able to increase the power, or to change the spreading factor, and the Network can help you with this choice by using what we call the ADR (Adaptive Data Rate). We will also explain the different classes A, B and C as well as the downlink capabilities of each class. Then we will have a look inside the LoRaWAN Network Server to see the uplink, downlink data frame, as well as the mac command frames to manage the LoRaWAN protocol. Finally at the end of the first part, we will explain how you can connect your IoT platform to the LoRaWAN server via MQTT or HTTP protocols.
During the second part, we speak about roaming to extend the network coverage, but also densify the Gateway which will improve the overall network capacities. Finally, we will speak about the FUOTA service to help you update a LoRaWAN device over the air. It uses other service like time synchronization, multicast, and data fragmentation.
To help you to learn more about LoRaWAN, you can download the free ebook or watch our video on the elearning platform. All information on our website : www.univ-smb.fr/lorawan/en/