Different Types Of LPWAN Networks

Low Power Wide Area Network (LPWAN) is a type of wireless communication technology designed for long-range communication with low power consumption, making it ideal for IoT (Internet of Things) and M2M (Machine to Machine) applications. There are several LPWAN technologies in use, with LoRaWAN and Sigfox being among the most typical ones as of my last knowledge update in September 2021. Here's a brief overview of these two LPWAN networks:

1. LoRaWAN (Long Range Wide Area Network):

   • Range: LoRaWAN can cover long distances, typically ranging from a few kilometers in urban areas to over 10 kilometers in rural areas, depending on the terrain and the specific deployment.
   • Data Rate: LoRaWAN offers relatively low data rates, typically in the range of a few hundred bits per second to a few kilobits per second.
   • Modulation: It uses chirp spread spectrum modulation, which provides robust performance in noisy environments.
   • Topology: LoRaWAN operates in a star-of-stars topology, where end-devices communicate with a central gateway.
   • Frequency Bands: LoRaWAN operates in various frequency bands, including sub-GHz ISM bands, making it suitable for global deployments.

2. Sigfox:

   • Range: Sigfox offers long-range communication, covering several kilometers to tens of kilometers, depending on the region and deployment.
   • Data Rate: Sigfox provides a very low data rate, typically up to 100 bits per second.
   • Modulation: It uses a proprietary ultra-narrowband modulation scheme.
   • Topology: Sigfox operates in a star network topology, with end-devices communicating directly with Sigfox base stations.
   • Subscription-Based: Sigfox is a subscription-based service, and it has its own global network infrastructure.

Apart from LoRaWAN and Sigfox, there are other LPWAN technologies and variations, including NB-IoT (Narrowband Internet of Things) and LTE-M (Long-Term Evolution for Machines), which are cellular-based LPWAN options. These technologies are deployed by cellular network operators and offer higher data rates compared to LoRaWAN and Sigfox but with slightly higher power consumption.