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Broadcom to Jump the Gun on 802.11n
[blockquote]An emerging IEEE standard that promises Fast Ethernet speeds for wireless LANs won't likely be ratified before late 2005, but as with previous WLAN protocols, Broadcom Corp. is planning to jump the gun by releasing "prestandard" products.
Still in the project authorization phase, 802.11n is designed to increase WLAN speeds to at least 100M bps for data and actual throughput rates.
Unlike current ratified Wi-Fi standards—802.11a, 802.11b and 802.11g—802.11n focuses on throughput at the MAC (media access control) interface, rather than as a signaling bit rate in the physical layer. This means the throughput rates will more likely match the highest-possible data rates, said IEEE officials, in Piscataway, N.J.[/blockquote]
Get the latest over at [link=http://www.eweek.com/article2/0,4149,1418620,00.asp]Eweek[/link]
Still in the project authorization phase, 802.11n is designed to increase WLAN speeds to at least 100M bps for data and actual throughput rates.
Unlike current ratified Wi-Fi standards—802.11a, 802.11b and 802.11g—802.11n focuses on throughput at the MAC (media access control) interface, rather than as a signaling bit rate in the physical layer. This means the throughput rates will more likely match the highest-possible data rates, said IEEE officials, in Piscataway, N.J.[/blockquote]
Get the latest over at [link=http://www.eweek.com/article2/0,4149,1418620,00.asp]Eweek[/link]
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Comments
The problem with 802.11b/g/a was that they ratified the speed standards in much the same way as they did for wired LANs; based entirely on signal timing. This is fine for wired media, as it has a constant propagation channel, and very few things can actually impede proper signal timings. 802.11b/g/a standards did not account for walls, bluetooth, cell phone, microwave, radio interference, or any of those other things.
802.11n as a standard, on the other hand, will be rated with its practical throughput as the number everyone will see. If it's rated for 100mbps on the box, that's what you'll get.. It'll be the performance of wired media, without the wires.