【Wi-Fi提速约100倍 “太赫兹”让网速快到飞起】

【Wi-Fi提速约100倍  “太赫兹”让网速快到飞起】近日,美国科学家利用新的数据传输技术“太赫兹”进行了视频传输,发现其可提高网速约100倍,每秒可达50GB,而且实现了“零错误”。目前的无线网络主要是靠微波传输,太赫兹的波长介于微波与红外线之间,频率较高,可携带更多数据。看来Wi-Fi也在努力提速,以跟上我们日益增长的上网需求呢!

Wifi is set to go ultrafast: Connections 100 times quicker than today on the horizon using high-frequency radiation waves

  • US researchers have been able to send video signals using terahertz waves
  • They allow data to travel at 50 gigabits a second, for 100 times faster speeding 
  • Current voice and data networks use microwaves to carry signals wirelessly
  • But demand is becoming more than the microwave networks can handle 

Super-fast wifi 100 times faster than today is on the horizon using high-frequency radiation waves.

US researchers have for the first time been able to send video signals using terahertz, rather than traditional microwaves.

Terahertz waves, which are high-frequency radiation, allow data to travel at 50 gigabits a second. That offers streaming speeds about 100 times faster than those possible today, in which wireless networks reach a top speed of 500 megabytes.

Professor Daniel Mittleman, from Brown University in the US, said: ‘We showed that we can transmit separate data streams on terahertz waves at very high speeds and with very low error rates.

‘This is the first time anybody has characterized a terahertz multiplexing system using actual data, and our results show that our approach could be viable in future terahertz wireless networks.’

 

Current voice and data networks use microwaves to carry signals wirelessly. But the demand for data is quickly becoming more than microwave networks can handle.

Microwave networks are struggling to carry the amount of data demanded by internet users

Microwave networks are struggling to carry the amount of data demanded by internet users

Terahertz waves have higher frequencies than microwaves and therefore a much larger capacity to carry data. However, scientists have only just begun experimenting with terahertz frequencies, and many of the basic components necessary for terahertz communication don’t exist yet.

This is the first time that terahertz waves have been used to send multiple signals through a single channel. This is called ‘multiplexing’ and is the same technology that allows one cable to carry multiple TV channels or hundreds of users to access a wireless Wi-Fi network.

But the authors say terahertz technologies are still some time away, until regulators begin allocating frequency bands for their use.

http://www.dailymail.co.uk/sciencetech/article-4780398/Wifi-set-ultrafast-Connections-100-times-quicker.html


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