LoRa

Repo of some introductory materials regarding LoRa and LoRaWAN radio technologies

Note: The content is organized in a more readable way below, but it's available directly though this URL here

You can also pull an updated copy using:

wget https://raw.githubusercontent.com/oliveiraleo/LoRa/main/LoRa-useful-URLs.txt

And then open (for eg. with nano):

nano LoRa-useful-URLs.txt

English

Introduction

Here there are the material with some initial definitions that are useful for understanding the LoRa protocol

Articles / Text

1. Wikipedia definition of LoRa

https://en.wikipedia.org/wiki/LoRa

2. LoRaWAN

What is the LoRaWAN® Specification: https://lora-alliance.org/about-lorawan/

3. LoRaWAN

What is LoRaWAN®: https://lora-alliance.org/resource_hub/what-is-lorawan/

4. Chirp signaling at Wikipedia

https://en.wikipedia.org/wiki/Chirp

5. Chirp Spread Spectrum at Wikipedia

https://en.wikipedia.org/wiki/Chirp_spread_spectrum

6. What are LoRa® and LoRaWAN®?

An introduction to LoRa & LoRaWAN done by Semtech (the developers of LoRa specification): https://lora-developers.semtech.com/documentation/tech-papers-and-guides/lora-and-lorawan/

7. Introduction to IoT: Everything You Need to Know About LoRa and LoRaWAN

Many key concepts of LoRa: https://appcodelabs.com/introduction-to-iot-everything-you-need-to-know-about-lora-and-lorawan

8. The Things Network docs

A even more complete introductory guide regarding LoRa and LoRaWAN: https://www.thethingsnetwork.org/docs/lorawan/

9. End Device Activation at The Things Network

A little bit more detailed explanation about OTAA & ABP activation modes (includes LoRa v1.1 specification): https://www.thethingsnetwork.org/docs/lorawan/end-device-activation/

Videos

1. Signal-to-Noise Ratio - 13:16

What is SNR by Darryl Morrell's channel: https://www.youtube.com/watch?v=MSKYeWfsNO0

2. LoRa CHIRP - 3:50

How does the CHIRP modulation works on LoRa networks: https://www.youtube.com/watch?v=dxYY097QNs0

3. Everything you need to know about LoRaWAN in 60 minutes - 01:00:00

Complete introductory material made available by video recording:

• Free Udemy course (split in 8 chapters, with some extra resources): https://www.udemy.com/course/lorawan-fundamentals/

• Complete 1 hour straight video only: https://www.youtube.com/watch?v=ZsVhYiX4_6o

Papers / Publications:

1. On the LoRa Modulation for IoT: Waveform Properties and Spectral Analysis

Chiani, M., & Elzanaty, A. (2019). On the LoRa Modulation for IoT: Waveform Properties and Spectral Analysis. IEEE Internet of Things Journal, 1–1. doi:10.1109/jiot.2019.2919151

https://doi.org/10.1109/JIOT.2019.2919151

2. LoRaWAN protocol: specifications, security, and capabilities

Alper Yegin, Thorsten Kramp, Pierre Dufour, Rohit Gupta, Ramez Soss, Olivier Hersent, Derek Hunt, Nicolas Sornin - 3 - LoRaWAN protocol: specifications, security, and capabilities, Editor(s): Bharat S. Chaudhari, Marco Zennaro, LPWAN Technologies for IoT and M2M Applications, Academic Press, 2020, Pages 37-63, ISBN 9780128188804, doi:B978-0-12-818880-4.00003-X.

https://doi.org/10.1016/B978-0-12-818880-4.00003-X

InfoSec

Articles / Text

1. LoRaWAN

Security FAQ (introduction to newbies): https://lora-alliance.org/resource_hub/lorawan-security-faq/

2. The Things Network docs (security)

Introductory concepts regarding the security aspect of LoRa and LoRaWAN: https://www.thethingsnetwork.org/docs/lorawan/security/

Videos

TBD soon

Papers / Publications

1. Increasing Key Randomness in Physical Layer Key Generation based on RSSI in LoRaWAN devices

P.I. da Cruz, R. Suyama and M.B. Loiola, Increasing key randomness in physical layer key generation based on RSSI in LoRaWAN devices, Physical Communication (2021), doi:10.1016/j.phycom.2021.101480.

The authors propose a method of key generation through PKG (Physical layer Key Generation) using MSD (Mean and Standard Deviation), LCDF (Lossy Cumulative Distribution Function) and RSC (joint between Reed-Solomon & Convolutional) on low mobility environments

https://doi.org/10.1016/j.phycom.2021.101480

To be continued... (Work in progress)

Portuguese

Aqui o material disponível em Português já que alguns podem achar melhor para entender, dado que é um assunto tremendamente técnico.

Introdução

Coletânea de material introdutório.

Artigos / Textos

1. Página da Wikipedia sobre LoRa

Dica: A página está incompleta no momento, recomendo a leitura da versão em inglês https://pt.wikipedia.org/wiki/LoRa

2. Página da Wikipedia sobre Chirp Spread Spectrum

https://pt.wikipedia.org/wiki/Redes_Chirp

Vídeos

Vídeos podem ser uma ótima forma de aprender por conta das possibilidades que os recursos visuais trazem para o processo de aprendizado

1. #11 - O QUE É LORAWAN? - 19:25

Vídeo do canal Matheus Leal com uma introdução geral a vários conceitos da tecnologia LoRa: https://www.youtube.com/watch?v=JV5lLn3CYoc

2. #Aula3 - LoRa e LoRaWAN - Spreading Factor, Potência e AirTime - 13:55

Vídeo do canal Microgenios com uma explicação dos conceitos SW, PW & AT da tecnologia LoRa: https://www.youtube.com/watch?v=6fSIgRUznnk

3. Camada Física de LoRa - 7:48

Vídeo do canal Vermont Rep com uma introdução aos conceitos basicos da camada física do protocolo LoRa: https://www.youtube.com/watch?v=lkgynwPjymo

4. IoT DevKit - LoRaWAN: Enviando Dados Via LoRaWAN - 1:12:55

Vídeo do canal RoboCore com uma explicação sobre como ativar um dispositivo (end device), com explicações sobre o código utilizado no Arduino: https://www.youtube.com/watch?v=ceEQe0QQWxM

Note

This repo still as a work in progress, so updates are expected in the future.