It strikes me that an interesting application for xPON is in free space optics.
You take the "head end" component and instead of shooting the laser into a fiber, you emit it directly out on a (say) 60 degree angle. Then the modems all just have small parabolic mirrors or telescopes which point at the master and they just signal using regular PON protocols as if it was a fiber network.
You take the "head end" component and instead of shooting the laser into a fiber, you emit it directly out on a (say) 60 degree angle. Then the modems all just have small parabolic mirrors or telescopes which point at the master and they just signal using regular PON protocols as if it was a fiber network.
The biggest mistake the wifi specification made was not to specify that the transmitter and receiver always be on different channels, so that data can flow in both directions simultaneously. If they had done that, wifi would be a LOT faster. As it stands, every radio has to go quiet while any other radio is emitting, and they have to wait speed-of-light delay for the signal to cross, it's very inefficient.
I don't mean one channel per client, I mean 2 channels per master, and every client shares a bcast channel and the master uses the other one.
