Communication networks
LoRa & LoRaWAN explained
LoRa LoRa (Long Range) is a low-power wide-area network (LPWAN) protocol developed by Semtech. It is based on spread spectrum modulation techniques derived from chirp spread spectrum (CSS) technology. It was developed by Cycleo of Grenoble, France and acquired by Semtech, the founding member of the LoRa Alliance.
Introduction LoRa is specifically designed for sending small data packages over long distances, with devices operating on a battery. The folowing table picture shows the ranges and powers for various well-know protocols.
Communication networks
LoRa radio modules
Overview LoRa modulation and transmission is realized with LoRa radio modules. Some modules only provide the LoRa physical layer, i.e. LoRa modulation, while some other also embed the LoRaWAN protocol stack to communicate with a LoRaWAN network.
Most of the module presented below are for end-devices which means that they are so-called single-channel LoRa modules. One LoRa radio concentrator, the RAK2245 Concentrator Hat, will allow developers to build low-cost LoRaWAN-compliant multi-channel gateways with a Raspberry Pi single-computer-board, capable to listen simultaneously on several frequency channels.
Communication networks
NB-IoT
NB-IoT NB-IoT TODO
Links & Resources NB-IoT explained: a complete guide to Narrowband-IoT