diff --git a/README.md b/README.md index d280894..ea77702 100644 --- a/README.md +++ b/README.md @@ -2,7 +2,7 @@ ![Overview of LoRaWAN communication and breakdown of LoRadar (Version 1)](https://drive.google.com/uc?export=view&id=1_DZtQ1pf7xVO5VPIY57kWERC9kML--kG) -![Overview of LoRaWAN communication and breakdown of LoRadar (Version 1)](https://drive.google.com/uc?export=view&id=1dRjqzCVLUKTCDUUo-21DoLjALqH2dRrb) +![Overview of LoRaWAN communication and breakdown of LoRadar (Version 1)](https://drive.google.com/uc?export=view&id=1lEeb3PsEt0KPR1qc5CjvcFaS846hATWO) ## Introduction LoRa is the physical layer access technology that employs a variant of the chirp spreadspectrum modulation, allowing low powered transmission of small data rates (0.3 kbps to 50 kbps) over a long distances (up to 15 km in suburban and 2 km in dense urban areas). LoRaWAN is a star topology network architecture developed on top of LoRa physical layer for communication between a gateway and an IoT sensor.