- Nov 18, 2011
- 6
- 0
- 0
if a light bulb is blinking from some hundred yard i probably can see it with my eye without the use of a binoculars.
so why don't we build a tall tower in the middle of residential neighborhood (the existing cell towers could work) and we install laser / visible light transceivers on the tower and on those houses and point those to each other.
multiple measures can be used to reduce the cost and increase the speed of communication:
1- if visible light will be used we can use more than one color.
2-interpolating those colors of the transceiver on the tower i.e. yellow transceiver placed next to blue transceiver next to green ... etc, so that the other end will have easier time reading the light signal
3-multiple transceivers per house can be used to increase the throughput .
4-transceivers could be built to have zoom . this kind of zoom lenses woudl be much much cheaper than camera zoom because the glass of a camera has much more to worry about than a few pixels of light to be detected.
5- directional light : e.g. if you installed the light with a reflector at the end of a regular plastic water pipe the light will be sort of directional. i am sure a cap with a relatively small hole at the other end will make it even more directional (other houses will not see it and that will decrease the noise on those transceivers.
i am not an engineer just saying what if we built such a system that replaces DSL/cable instead of the crappy DSL/cable we have in many places (the last mile problem).
any thoughts ?
so why don't we build a tall tower in the middle of residential neighborhood (the existing cell towers could work) and we install laser / visible light transceivers on the tower and on those houses and point those to each other.
multiple measures can be used to reduce the cost and increase the speed of communication:
1- if visible light will be used we can use more than one color.
2-interpolating those colors of the transceiver on the tower i.e. yellow transceiver placed next to blue transceiver next to green ... etc, so that the other end will have easier time reading the light signal
3-multiple transceivers per house can be used to increase the throughput .
4-transceivers could be built to have zoom . this kind of zoom lenses woudl be much much cheaper than camera zoom because the glass of a camera has much more to worry about than a few pixels of light to be detected.
5- directional light : e.g. if you installed the light with a reflector at the end of a regular plastic water pipe the light will be sort of directional. i am sure a cap with a relatively small hole at the other end will make it even more directional (other houses will not see it and that will decrease the noise on those transceivers.
i am not an engineer just saying what if we built such a system that replaces DSL/cable instead of the crappy DSL/cable we have in many places (the last mile problem).
any thoughts ?