Traditional update of my teaching support on IoT. This year I’ve addressed my speak to larger and different audiences. As a consequence I publish a totally renewed slide-deck with 203 slides. I’ve improved the IoT business model description, use-cases and technology area. I also detailed the platform side of the IoT solutions.
Feel free to reuse this content for your own conference and speak. I’m available for conference, talk … let me know.
The full PDF is available on the following link.
Amazingly interesting and indepth explanations of the whole IOT space, so impressive !
Big up!
btw, slide 144 is still in french 😉
One question : you say “About 1000 device in a same area (even in different networks) will saturate the 8 available channels. (it depends on SF and duty cycle…)”
It means you could have mutliple gateways, it would still saturate (or even more as you would generate useless ack), right ? Isn’t it a massive issue for real life deployment ? I mean if we were to really use it everywhere, for a lot of objects, it’s pretty easy to have 1000 device in a “area” – although it depends how wide you define area, but talking about LoRa, it can be pretty wide right ?
Now if you multiply the private networks, and as the gateways don’t roam – as far as I understand – this limit will be reach even faster no ?
Cheers!
Hello, thank you for your feedback. I thing that now the slide in French has been traduced (and also some more has been added) but I will publish the revision is mid 2021 now.
The theorical limits are about 1000 devices and practically I don’t think there are a lot of place where a such density has been reached or will be reached soon. But it can happen in the future and needs to be considered. The most important point to have in mind is even if the networks are private, the radio frequencies are shared. LoRaWan is mostly impacted as each channel bandwidth is large so 8 channels are taking most of the ISM bands and most of the networks are sharing the same frequencies. So you don’t need to count your device but the whole devices in the area.
Once again, this will be a problem in 10 years maybe and is not currently.