вторник, 5 июня 2012 г.
воскресенье, 3 июня 2012 г.
Speed Wi-Fi tripled
According to Ars Technica, California-based specialist Quantenna Communications, founded in 2006, succeeded in increasing the capacity of Wi-Fi network up to 1 Gbit / s.
Initially, the company's engineers set out to address three issues home wireless access points, delete the interference of neighboring networks to ensure clarity of the signal in the presence of thick walls, the typical European houses, and to solve the same problem for the spacious American homes with basements and attics.
According to CNews, common today in the market for equipment access points, Wi-Fi standard 802. 11n (Draft-N) has two or three -receiving antennas, which allows the exchange of information at speeds up to 300 Mbit / s. The company proposes to use Quantenna four antennas for signal reception and transmission, and four separate radio module, collected on the same chipset.
Engineers have developed three models Quantenna chipsets. The first two - QHS450 and QHS600 - have four radio modules and are designed for four antennas operating at frequencies of 2.4 and 5 GHz, respectively. For home use we recommend the scheme 4x4, four radios implying the separation into two groups, each of which conveys the same information. As a result, the coverage is doubled, and the data rate is limited to 100 or 200 Mbit / s. In turn, the scheme allows the Dual 2x2 double the data transfer rate at a fixed coverage area. In Quantenna believe that this option may be interested in a company whose employees are located near access points.
A third chip, QHS1000, designed for larger businesses and public places. It has eight radios and allows to achieve the data rate 1 Gbit / s.
According to the plans Quantenna, chipsets hit the market in 2009. Presumably the price of wholesale party will be 20-40 dollars apiece.
Source:. Kompyulenta.
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