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Physicists score double hit in LED research

In two breakthroughs in the realm of photonics, City College of New York graduate researchers are reporting the successful demonstration of an LED (light-emitting diode) based on half-light half-matter quasiparticles in atomically ...

Engineers achieve Wi-Fi at 10,000 times lower power

The upside of Wi-Fi is that it's everywhere - invisibly connecting laptops to printers, allowing smartphones to make calls or stream movies without cell service, and letting online gamers battle it out.

Wi-fi on rays of light—100 times faster, and never overloaded

Slow wi-fi is a source of irritation that nearly everyone experiences. Wireless devices in the home consume ever more data, and it's only growing, and congesting the wi-fi network. Researchers at Eindhoven University of Technology ...

See-through-wall surveillance with WiFi shown at UCL

(Phys.org) -- A surveillance device that uses WiFi radio waves has been devised to see through walls to detect, in military and surveillance parlance, moving personnel targets. The device serves as a radar prototype designed ...

Is neighbor's Wi-Fi signal free for me to use?

Q. The other day, my Internet service went down as it does from time to time. But this particular time, I needed to check my e-mail for an important reply I was expecting. After some frustrating time passed, I happened to ...

Broadcom will ship 802.11ac products in 2012

(PhysOrg.com) -- Broadcom is highlighting a second coming of Wi-Fi in the name of the new IEEE standard 802.11ac, with this week’s announcement that its products based on the nascent standard will be ready for shipping ...

Samsung's Droid Charge disappoints

Samsung's Droid Charge is the latest high-end Android smartphone from Verizon. It carries a premium price - but it's not worth it.

Review: Use power outlets as a Wi-Fi alternative

(AP) -- Setting up a Wi-Fi network at home has gotten much easier, yet the process can still be daunting. Or the wireless signal won't reach everywhere. A good alternative that has gotten little attention involves your electric ...

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Wi-Fi

Wi-Fi (pronounced /ˈwaɪfaɪ/) is a trademark of the Wi-Fi Alliance for certified products based on the IEEE 802.11 standards. This certification warrants interoperability between different wireless devices.

In some countries (and in this article) the term Wi-Fi is often used by the public as a synonym for IEEE 802.11-wireless LAN (WLAN).

Not every IEEE 802.11 compliant device is certified by the Wi-Fi Alliance, which may be because of certification costs that must be paid for each certified device type. The lack of the Wi-Fi logo does not imply that a WLAN-device is incompatible to certified Wi-Fi-devices.

Wi-Fi is supported by most personal computer operating systems, many game consoles, laptops, smartphones, printers, and other peripherals.

This text uses material from Wikipedia, licensed under CC BY-SA