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Nice, that would be really nice to have for large Wi-Fi systems in big commercial buildings too.
This is exactly how (big) wifi systems work. (mesh) If this is not the case in a big commercial building, it was done by choice or because of incompetence.
On a related note, this same mechanism can be used as a fallback for GPS to determine device location. I have worked on an IoT device with builtin SIM in the personal alarm space. Often when a device is indoors no GPS fix can be found, but the GSM module can report all celltower ids in range with signal strengths. These can be used to triangulate the device location. Google has an API for this where you can pass celt…
This discussion reminded me of an iOS app that visualized cell towers in AR. I can't remember the name, though.
http://www.architectureofradio.com
The iOS application:
https://apps.apple.com/us/app/architecture-of-radio/id103516...
On a related note, this same mechanism can be used as a fallback for GPS to determine device location. I have worked on an IoT device with builtin SIM in the personal alarm space. Often when a device is indoors no GPS fix can be found, but the GSM module can report all celltower ids in range with signal strengths. These can be used to triangulate the device location. Google has an API for this where you can pass celt…
Earlier quoted context omitted.
This is exactly how (big) wifi systems work. (mesh) If this is not the case in a big commercial building, it was done by choice or because of incompetence.
No it's not. A campus network has a PoE line to each access point. It's not a mesh, they don't route the traffic between the access points over the air.
This discussion reminded me of an iOS app that visualized cell towers in AR. I can't remember the name, though.
You probably mean Richard Vijgen's art project: http://www.architectureofradio.com The iOS application: https://apps.apple.com/us/app/architecture-of-radio/id103516...
How do i do this myself now? I always have put my phone in air plane mode when i was in a train due to the modem consuming a lot more energy. I always assumed and still doe its due switching towers and less connecitivy which means using more power. Whenever people argue that public transport doesn't need wifi i would argue against it due to power usage and also for more accessablity of the internet in general.
As the essay notes, it's through TelephonyManager on Android. On iOS it used to be possible through CoreTelephony private APIs, but I think Apple cracked down on these a few years back and either removed them entirely or locked them down behind entitlements, as they were getting abused by analytics frameworks.
The iPhone entries in the table could give a misleading impression of the timing. UMTS 3G phones had long been commonplace by the time the iPhone 1 was announced.
Earlier quoted context omitted.
No it's not. A campus network has a PoE line to each access point. It's not a mesh, they don't route the traffic between the access points over the air.
Isn’t that mesh with back haul? I thought the characteristics of a mesh were that the APs were communicating with themselves to provide handoff. Data can move over the AP or through back haul.
Earlier quoted context omitted.
Isn’t that mesh with back haul? I thought the characteristics of a mesh were that the APs were communicating with themselves to provide handoff. Data can move over the AP or through back haul.
I think that's roaming. Mesh wifi should IMHO be routing the traffic through the nodes (with possible backhaul).