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by trapperkeeper79
3354 days ago
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I'm curious what the fundamental underlying tech is that is driving Lora and Sigfox? E.g. cdma has a few core ideas that make the magic work. What is the equivalent fundamental concept that is driving the low-power, long-range, low-bw communication? |
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* Ultra Narrow Band (100Hz) modulation
* Low data rate (100 bits/s in Europe, at 14dBm/25mW) + lightweight protocol
* High receiver sensitivity, mostly SDR based
We've got a few youtube videos explaining this ... but mostly targeted for a generic audience. The "radio signal modulation" may have enough tech details to match what you're looking for : https://www.youtube.com/watch?v=gGvM6KEDIdE&index=6&list=PLc...
We're also working on a publication of a standard UNB IoT protocol, Sigfox being one of its implementations. Should come within a few weeks.
There is a draft about the network architecture here : https://datatracker.ietf.org/doc/draft-zuniga-lpwan-sigfox-s...