Name: Harald Haas: 用每一个灯泡传输无线信号
Uploaded: 2011-08-02T14:08:49Z
Duration: 12 min 35 s
Description: 如果世界上每一个灯泡都能传输数据会是什么样呢？在TED全球会议上，Harald Haas 第一次演示了实现这个设想的装置．通过闪烁的单个LED灯，他利用那些微小到人类眼睛都无法察觉的光亮变化，传输了比一个信号塔还要多的数据，而且是以一种更经济，更安全，传播更广泛的方式．

Cisco Visual Networking Index: Global mobile data traffic forecast update, 2013–2018

Visible light communication using OFDM

Spatial modulation for generalized MIMO: Challenges, opportunities and implementation

Avoiding Spectral Efficiency Loss in Unipolar OFDM for Optical Wireless Communication

A 3-Gb/s single-LED OFDM-based wireless VLC link using a gallium nitride μLED

High-speed wireless networking using visible light

Li-Fi Research and Development Centre

如果世界上每一个灯泡都能传输数据会是什么样呢？在TED全球会议上，Harald Haas 第一次演示了实现这个设想的装置．通过闪烁的单个LED灯，他利用那些微小到人类眼睛都无法察觉的光亮变化，传输了比一个信号塔还要多的数据，而且是以一种更经济，更安全，传播更广泛的方式．

Harald Haas: 用每一个灯泡传输无线信号

By harnessing the power of LED light bulbs, data can be transmitted using visible light, offering an alternative to crowded and inefficient radio waves. With 14 billion light bulbs already installed worldwide, this approach accesses a spectrum 10,000 times larger than what is currently used for wireless communication. A single LED lamp, modulated faster than the human eye can detect, can stream high-definition video and provide fast, secure connectivity. This method dramatically increases capacity, slashes energy waste, and protects privacy by confining data to illuminated spaces.