Quote:
Originally Posted by dgatwood
Based on typical rates of technology price gouging, 10-gigabit Ethernet will be affordable in about 5 years. 100-gigabit Ethernet will be affordable in 10 years. The not-yet-standardized 400-gigabit Ethernet will probably not be affordable for at least 15 years. So basically, Li-Fi is at least 15 years away from being practical to deploy. By the time it becomes financially practical to provide a backhaul for Li-Fi, Wi-Fi will probably be just as fast. (*)
(*) Maybe not, but it is far enough in the future that I wouldn't rule out the possibility.
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Have you considered the physics of it? 400GHz is approaching the frequency range of the far infrared, rather than radio waves, which means that such signals would be blocked by any solid object. It would be terrible for WiFi. The higher the frequency, the less able the signal is to go through obstacles.