3 ms·

You'll either need a mesh network (higher latency) or you'll need a backbone (which is an ISP) so you'll still run into similar issues. Not to mention at the lo

You'll either need a mesh network (higher latency) or you'll need a backbone (which is an ISP) so you'll still run into similar issues. Not to mention at the lower bands you have limited bandwidth, not just for yourself but for everyone, so bandwidth congestion will become a huge issue if everyone used it for internet. That said I do hate my ISP (and most others) with a burning passion so...

beamatronic 8y ago
Could a mesh network be created on existing WiFi hardware? For example with a firmware refresh / OpenWRT? Then it’s just a matter of mass adoption / critical mass in neighborhoods.
- zamadatix 8y ago
  Technically yes, practically no. Half duplex in a shared medium radio hardware just does not scale to neighborhood sized meshes well.
  - bullen 8y ago
    I'm trying to figure out a way to get small messages to transfer over P2P radio: http://radiomesh.org http://radiomesh.org
    - zamadatix 8y ago
      I've been having great success with https://www.crowdsupply.com/ronoth/lostik https://www.crowdsupply.com/ronoth/lostik It has both a Lora mode and raw radio mode, I've been utilizing the raw radio mode.
      - bullen 8y ago
        Ok, neat! What language are you programming in? I'm going to use Java, the tricky parts will be to build the frequency hopping (for me 410-525MHz) + power lowering (-1-+14/+20dBm) parts so that densely populated areas can function properly.
        zamadatix 8y ago
        Largely NodeJS with https://www.npmjs.com/package/serialport https://www.npmjs.com/package/serialport but for some of the more ethernet-centric integrations I've been using C++. I haven't gotten to dynamic frequency setups yet, I've actually been lazy and using 2 of these on each side to act as separated TX/RX in different frequency bands. Certainly doesn't scale past a dozen but it made things a lot easier to get started. I'm curious on your choice of optimization algorithm to balance cell size/interference with relay congestion.

beamatronic 8y ago

Could a mesh network be created on existing WiFi hardware? For example with a firmware refresh / OpenWRT? Then it’s just a matter of mass adoption / critical mass in neighborhoods.

zamadatix 8y ago
Technically yes, practically no. Half duplex in a shared medium radio hardware just does not scale to neighborhood sized meshes well.
- bullen 8y ago
  I'm trying to figure out a way to get small messages to transfer over P2P radio: http://radiomesh.org http://radiomesh.org
  - zamadatix 8y ago
    I've been having great success with https://www.crowdsupply.com/ronoth/lostik https://www.crowdsupply.com/ronoth/lostik It has both a Lora mode and raw radio mode, I've been utilizing the raw radio mode.
    - bullen 8y ago
      Ok, neat! What language are you programming in? I'm going to use Java, the tricky parts will be to build the frequency hopping (for me 410-525MHz) + power lowering (-1-+14/+20dBm) parts so that densely populated areas can function properly.
      - zamadatix 8y ago
        Largely NodeJS with https://www.npmjs.com/package/serialport https://www.npmjs.com/package/serialport but for some of the more ethernet-centric integrations I've been using C++. I haven't gotten to dynamic frequency setups yet, I've actually been lazy and using 2 of these on each side to act as separated TX/RX in different frequency bands. Certainly doesn't scale past a dozen but it made things a lot easier to get started. I'm curious on your choice of optimization algorithm to balance cell size/interference with relay congestion.