Scientists have developed a new wireless Internet based on harmless infrared rays that is 100 times faster than existing Wi-Fi network and has the capacity to support more devices without getting congested. \u2013 @Siliconeer #Siliconeer #Technology #WiFi #GigabitInternet #WirelessConnectivity @EindhovenUniversityofTechnology @TheNetherlands<\/p>\n
Slow Wi-Fi connectivity is a cause for irritation that nearly everyone experiences. Wireless devices at home are consuming ever more data, and it is growing, and congesting the Wi-Fi networks, researchers said.<\/p>\n
The wireless network developed by researchers at Eindhoven University of Technology in The Netherlands not only has a huge capacity \u2013 more than 40 Gigabits per second (Gbit\/s) \u2013 but there is also no need to share since every device gets its own ray of light.<\/p>\n
The system is simple and cheap to set up. The wireless data comes from a few central \u2018light antennas,\u2019 for instance mounted on the ceiling, which are able to very precisely direct the rays of light supplied by an optical fiber.<\/p>\n
The antennas contain a pair of gratings that radiate light rays of different wavelengths at different angles (\u2018passive diffraction gratings\u2019).<\/p>\n
Changing the light wavelengths also changes the direction of the ray of light. Since a safe infrared wavelength is used that does not reach the vulnerable retina in your eye, this technique is harmless.<\/p>\n
If you walk around as a user and your smartphone or tablet moves out of the light antenna\u2019s line of sight, then another light antenna takes over, researchers said.<\/p>\n
The network tracks the precise location of every wireless device using its radio signal transmitted in the return direction, they said.<\/p>\n
It is a simple matter to add devices: they are assigned different wavelengths by the same light antenna and so do not have to share capacity.<\/p>\n
Moreover, there is no longer any interference from a neighboring Wi-Fi networks.<\/p>\n
The current Wi-Fi networks use radio signals with a frequency of 2.5 or 5 gigahertz.<\/p>\n
The new system uses infrared light with wavelengths of 1,500 nanometers and higher.<\/p>\n
This light has frequencies that are thousands of times higher, some 200 terahertz, which makes the data capacity of the light rays much larger.<\/p>\n
Researchers managed to achieve a speed of 42.8 Gbit\/s over a distance of 2.5 meters. Even if you have the very best Wi-Fi system available, you would not get more than 300 Megabit\/s in total, which is some hundred times less than the speed per ray of light achieved by the new system.<\/p>\n","protected":false},"excerpt":{"rendered":"
Scientists have developed a new wireless Internet based on harmless infrared rays that is 100 times faster than existing Wi-Fi network and has the capacity to support more devices without getting congested. \u2013 @Siliconeer #Siliconeer #Technology #WiFi #GigabitInternet #WirelessConnectivity @EindhovenUniversityofTechnology @TheNetherlands Slow Wi-Fi connectivity is a cause for irritation that nearly everyone experiences. Wireless devices…<\/p>\n