802.11n draft 2 is 5 times faster and goes 2 times farther than existing products
Roughly a year ago when the 802.11n standard was still in its infancy, companies decided to ship products based on the pre-standard anyway. The result was that customers were able to get their hands on 108Mbps Wi-Fi technology before the standard was officially approved. The risk for consumers at that point was whether or not their pre-standard 802.11n gear would still work once the standard reached its final stages.Consumers already using 802.11n devices this week receive a bit of good news. The Wi-Fi Alliance announced that starting in June, 802.11n will enter draft 2.0, which means products will undergo a new certification. Despite the news from the Wi-Fi Alliance, 802.11n products will not reach final revisions for some time. The initiative is simply to ensure that there is interoperability between products on store shelves.Draft 2.0 will bring along two significant differences. First, 802.11n draft 2.0 devices will have two 20MHz channels, giving it the ability to seek for legacy devices. One channel will turn off intelligently when legacy devices are detected. This way, users will be able to receive and transmit at optimum speeds when attached to an older network. Secondly, 802.11n draft 2.0 products will perform checks to ensure that both channels are clear before data is transmitted.Despite being a year away from a finalized version, the Wi-Fi Alliance believes that certifying products now will put products out to market faster. "802.11n will offer up to five times the throughput and twice the range of existing Wi-Fi technology, which will make it ideal for enabling multimedia applications throughout the home," said Karen Hanley, senior director of marketing for the Wi-Fi Alliance."So it's important to get products on the market that will work together so that consumers can get the technology they need to extend their home networks," concludes Hanley.
Reference:Tuan Nguyen,dailytech
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