Universal LoRa(WAN) gateway limitations, because physics?
Am I understanding correctly that with a maximum of 1000 (25 byte) messages per minute; this boils down to a maximum of 16 messages per second (per channel)? So a maximum of 400 bytes per second (per...
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Downstream data packet
@ndarkness I have made a NodeJS server using dgram to receive UDP packets from my gateway. These are then decrypted with some code from node-red...
View ArticleUniversal LoRa(WAN) gateway limitations, because physics?
Hi all, Thomas, please look at my original blogpost. I focussed on LoraWan not Lora, for LoraWAN there are only 3 data channels in the specifications for Europe. In the simulation of Sigfox I used 300...
View ArticleUniversal LoRa(WAN) gateway limitations, because physics?
@jnuyens, all depends on data rate as well, so it's not easy to give a number. Spreadsheet for LoRa airtime calculation might help answering your question.
View ArticleUniversal LoRa(WAN) gateway limitations, because physics?
I agree saleability is a big issue if the only co-operation is the 1% regulated air time. One interesting aspect of LoRaWAN is the ability for the Network Server to manage various communication...
View ArticleUniversal LoRa(WAN) gateway limitations, because physics?
The best method would be to all use SF6 since the air time will be smallest. Still you can not synchronize your devices to have a time slotted system, since that would require even more communication...
View ArticleUniversal LoRa(WAN) gateway limitations, because physics?
Hi Maarten, To start with your last point, I think you're right on spot: we are sharing an access medium, and fully dependent on what others do. We should try the best we can do within those...
View ArticleUniversal LoRa(WAN) gateway limitations, because physics?
In our capacity testing we've seen collision rates at about x2 this rate because of up/down collisions caused when the gateway is ACKing or sending MAC traffic. I our testing 1000 25 byte SF7...
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Universal LoRa(WAN) gateway limitations, because physics?
maartenweyn: Anyway if you have a scheme, I'm happy to simulate it. Some sort of slotting would be needed I think if the communication overhead could be somehow manageable. In a single gateway...
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Universal LoRa(WAN) gateway limitations, because physics?
dmulder: I should think that lost packages can not be monitored from the gateway... A gateway should be able to detect collisions, so I assume it can calculate an error rate, though indeed it cannot...
View ArticleUniversal LoRa(WAN) gateway limitations, because physics?
here is a capacity comparison between different technologies.http://waviot.com/technology/waviot-lpwan-technology-comparison sigfox is better spectrum efficient than lora because modulation technique....
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Single Channel Gateway
Hi, I have published the code for the ESP8266 single channel gateway on the Things4U Github. The draft documentation of the ESP8266 is also on the Things4U github pages. Do not forget to use the...
View ArticleNYC - The Big City
Frank here from Park Slope, Brooklyn. I'm planning to mount a gateway on my roof. It'll be a project routing power and network up there so I don't expect to be live immediately.
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Air Quality Sensor via TTN
Screen Shot 2016-04-12 at 7.39.56 PM.png1457x993 104 KB Our first prototypes of Lora based AQI sensors are up and running. Traffic goes via TTN from Canada to Netherlands and back. Gas and particle...
View ArticleNYC - The Big City
Hi @frankleonrose, there is an active community in New York now. You can get in touch with @nmap and Terry to find out more details. (thethingsnetwork.org/c/newyork)
View ArticleThe Things Network New York
See NYC - The Big City, and it seems discussions can continue there? Also, see the community, http://thethingsnetwork.org/c/newyork (though that seems to be inactive...). Or are those just for the...
View ArticleCommunity Building Process
Hi @laurens.slats, Nice visual overview! In our case, there were some differences, the biggest one is the "define first test use case" happening so early. We didn't really have one that early in the...
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Single Channel Gateway
me to found some spare parts in the junkbox junkbox.jpg1200x1120 288 KB
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