The parameters for 802.11ac, reaching three times the speed of Wi-Fi n standard support wireless and high-definition video, is being reviewed for approval in late 2012. However, unlike 802.11n can exploit both the 2.4 GHz or 5 GHz, 802.11ac devices (Wi-Fi 5th generation) only works in the 5 GHz band. To overcome this limitation, the transmission would use beam-forming technology (clustering), that signal will be transmitted by the chain circles when people drop like stones into the lake. The most notable advantage of the new standard is to help users share information more easily. Theoretical speed of it crossed the milestone of 1 GB per second, or three standard n. It also achieved greater coverage and does not consume the same energy will soon be common across a range of devices from smartphones to TV. The fierce competition makes the market more manufacturers to quickly integrate new technologies into products. Wi-Fi will bring 5th generation wireless transmission power for electronic devices. "802.11ac in the decoder signal cable or satellite can detect wireless video to many different TV coverage, or a different perspective is the smartphone will be able to transmit high-definition video wirelessly to TV ", the research firm In-Stat NPD said. This standard is expected to be held through the end of IEEE and then to Wi-Fi Alliance to certify in early 2013. Then the manufacturer will launch the device may use information from official 802.11ac (draft) as standard n stages of development before. The company has exhibited Buffalo routers 802.11ac first integrated router at CES early 2012. Series smartphones, the first tablet 802.11ac will be announced at the CES and MWC exhibitions next year. Estimated 2 million TV with standard ac will also appear in 2013. However, consumers will likely wait until 2015 when 802.11ac has "matured" and is included in the router 18 million, 25 million TV, 129 million tablets, 184 million and 279 million smartphones notebook (according to NPD In- Stat). This figure means more than 1 billion devices will be equipped with Wi-Fi high speed for 3 years. According to VnExpress