The idea is that light can help with a looming capacity problem.
他们的想法是可见光通信将有助于解决即将来临的数据传输瓶颈问题。
As radio-based wireless becomes ubiquitous, more and more devices transmitting more andmore data are able to connect to the internet, either through the mobile-phone network orthrough Wi-Fi.
随着无线电通讯的普及,越来越多的数据传输量越来越大的设备能够通过移动网络或Wi-Fi与互联网连接。
But there is only a limited amount of radio spectrum available.
但可用于通信的无线电频段是有限的。
Using light offers the possibility of breaking out of this conundrum by exploiting a completelydifferent part of the electromagnetic spectrum, one that is already ubiquitous because it isused for another purpose: illumination.
运用一个完全不同的电磁波段可见光,就有可能解决这个难题;这个波段其实早已相当常用,因为它有另一个作用:照明。
Lighten the darkness
照亮黑暗
To turn a light into a Li-Fi router involves modulating its output, to carry a message, andlinking it with a network cable to a modem that is connected to a telephone orcable-broadband service, just like a Wi-Fi router.
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