5 ms·
There may be ways to overcome the limitations of mesh networking, as outlined by many people here, but you will need to think outside the mesh, so to speak. It
by CamperBob 15y ago
There may be ways to overcome the limitations of mesh networking, as outlined by many people here, but you will need to think outside the mesh, so to speak. It is probably best to think of the mesh as the "last mile" component rather than the backbone.
One idea: a $5 laser pointer can be modulated at well over 100 Mbit/s. Everyone in an urban area who can see one side of a building can bounce laser beams off of it. (Data recovery and collision resolution are left as exercises...)
- 1010101111001 15y agoI read that Xerox did this between two of their buildings many years ago. Apparently it ran across some portion of a motorway and they had to turn if off occassionally. I've forgotten where I read this. Maybe someone else knows the full story.
- impeachgod 15y agoDealers of Lighting by Michael A. Hiltzik. It's a great book about the beginnings of Xerox PARC.
- _exec 15y agoI'm really interested in testing this idea, do you have any links / papers / online projects? All I can find on Google is audio-over-laser projects..
- wmf 15y agoThe keyword is "free space optical". http://ronja.twibright.com/ http://ronja.twibright.com/
- nl 15y agoData recovery and collision resolution are left as exercises... I have discovered a truly marvelous proof of this, which this margin is too narrow to contain?
- Gmo 15y agoProblem with laser is fog ... In my student dorm, we used that to connect to the University network (which was a km or two across ...) We would not get any internet by foggy weather :) Actually, that was always something funny to say ... "We have internet by laser" then people would go "wow" ... and then you say "and it doesn't work when there is fog" and then suddenly, all the "wow" goes away :D