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In wifi, modulated signal is radio wave where as life modulated signal is light. It is visible electromagnetic spectrum and has higher bandwidth than wifi but has Line of sight limitation.    ...

A study produced a technology called Light Fidelity or LiFi promises faster transfer speeds than WiFi and LiFi likely to replace in the future.WiFi or Wireless Fidelity ears are probably already familiar to computer users. WiFi is also often referred to as WLAN (Wireless Local Area Network) that uses radio waves to frekuensi2, 4GHz using the IEEE 802.11 standard.Recently, researchers have developed UniversitasEdinburg wireless networks or wireless systems capable of producing...

LiFi is a new way to establish wireless communication links using the Led lighting networks. The LiFi protocols are defined by the international standard IEEE 802.15 established since 2011 by the IEEE comity. This is the same comity that has defined previously the Ethernet 802.3 and WiFi 802.11 standards. For numerous specialists, LiFi is a major breakthrough technology for the mobile Internet community and for the connected objects domain. After more than 4 years of scientific research at the...

In the IT industry there's always someone, somewhere holding a convention: most recently it was VMware (again) hosting its VMworld 2013 event, this time in Barcelona. And when it comes to conventions, there are few finer places in the world to hold one than the Catalan capital — home city of Pablo Picasso, Salvador Dali, Lionel Messi and delicious tapas. It's against this splendid backdrop that VMware has made a raft of announcements about new and upgraded products to keep its customers...

Twitter has transformed the media industry and turned ordinary members of the public into reporters, one of the social networking site's top bosses told a conference in the UAE capital on Wednesday. Speaking at the Abu Dhabi Media Summit, Shailesh Rao, Twitter’s vice president in Asia Pacific, Latin America and emerging markets, said: “Traditionally, it was through mainstream media that people received information. Today it’s different and it seems like everyone is doing it. Tweets, or visualisation...

Best Buy is cutting $100 off the cost of several top smartphones as part of a new limited-edition offer. Smartphone consumers can head over to a Best Buy store to pick up an iPhone 5S for $99 on contract (AT&T, Sprint and Verizon only) and a Galaxy Note 3 for $199 without having to trade in old devices. The retailer is also selling the LG G2, Moto X and Samsung Galaxy S4 for $100 off. The deal only covers customers signing new contracts, however, so if you're simply looking to upgrade,...

'Tis the season for new tablets! With some of the best ones rolling out into markets this season, what can we expect? Here we have a comparison between the iPad Air, Sony Vaio Tap 11, and Sharp's Mebius Pad, set to debut next year. APPLE iPAD AIR Apple reveals that it is only 1 pound, where it's 9.4 inches long, 6.6 inches wide, and .29 inches deep. There is also a cellular-enabled version, where it is compatible with all major US carriers. SONY VAIO TAP 11The iPad Air features retina display...

Today in Apple: 64-bit A7 chip and the iPad Air. Plus: CNN thinks iPad sales are in decline, and Sculley wants Apple to ignore Icahn The 64-bit A7 chip has been a big driver in iPhone 5S sales, and PCMag think it's really going to rock in the iPad Air. For graphics, Anandtech found the A7 to contain a PowerVR G6430 GPU that supports OpenGL ES version 3.0, which Apple is claiming to be twice as fast as the prior generation iPad 4. We'll see when we get the two of them side by side, although...

This year’s event has seen the number of international exhibitors increase by 26%, with a grand total of 61 countries present. New participating countries at the thirty-third edition of the show include Official Country Sponsor Serbia; Belarus, Brazil, Finland, Kenya, Lithuania, Slovenia, Tunisia and Ukraine. Delegations of senior officials were also present from countries including Bahrain, Egypt, India, Jordan, Morocco, Nigeria, Saudi Arabia, Tatarstan, Tunisia and United Kingdom. There...

Finally Released: DMASOFTLAB RADIUS MANAGER BILLING SYSTEM v4.1 Source:  http://www.dmasoftlab.com/cont/revision ** v 4.1.0 ** 2013-10-23 ** NEW FEATURES: -enhanced SMTP mailer with authentication and freely configurable port-SMS alert indicating the account is going to expire-support for BulkSMS HTTP->SMS gateway-alert type is selectable in user preferences (ACP / UCP)-enable traffic report per user in ACP even if global traffic report is disabled-service change is allowed for...