nLoRa makes use of a network coding technology for multihop communication in a LoRa wide area network (LoRaWAN). By putting in additional relays in the network, the range of the network is extended without the installation of additional gateways. The relays act as a secondary gateway. They help in reducing interference and making LoRaWAN more scalable.
- Makes the overall LoRaWAN scalable. The multiple relays deployed are closer to the sensors. The capture effect is hence employed, and the network is not interference limited.
- Extends the range of the network
- Eliminates blind zone and spots without network coverage
- Makes the communication fully bidirectional
- Improves the reliability of communication
- Enhances network throughput
- Has low cost because it operates in an unlicensed spectrum
- Has a battery life of 5 to 10 years
nLoRa has multiple use cases. Some of these are as follows:
- Smart metering
- Tree monitoring
- Agriculture planning and monitoring
- Tracking and tracing in logistics and supply chain
- Smart outdoor (citywide) lighting
- Fire detection in the woods or forests
What technology is used?
The key technologies nLoRa makes use of are network coding and LoRa communication (LoRa sensors and gateways). The relays deployed in a conventional LoRa wide area network (LoRaWAN) transfer the packets from the LoRa sensors to the LoRa concentrator/gateways and vice versa. The relays also make use of LoRa communication technology.
By installing network coded relays, the efficiency of the overall network improves. Network coding based multihop communication enables high throughput and high-reliability connection between the sensors and the gateways. The packet reception ratio at the receiver is hence increased significantly by using network coding technology.