Hi Frank,
>>Ultra wideband, 802.11n, WiMAX among the emerging wireless technologies soon to infiltrate schools<<
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"Wi-Fi and WiMAX will co-exist and remain on the laptop for many years," Butcher says. "Users of laptops will be connecting to wireless broadband signals depending on the best connections. It could be outside on WiMAX, or inside on Wi-Fi."<<
Why not use Wi-Fi to backhaul Wi-Fi?
At IEEE 802 London meeting last week, the vote to create 802.11n Draft 2.0 was 100/0/5, and it will be balloted in the next few weeks/months.
The first draft of 802.11y - 3650 MHz Operation in USA - reached 75% approval, and will be changed to incorporate comments before our March meeting. 802.16h leaders are creating a sheet of concerns about coexistence for 802.11y to discuss at the March meeting. They are starting to experience 5.8 GHz deployments where Canopy (Hiperlan2-like) interferes with their systems, and want to quantify what interference from 5-MHz channel bandwidth 802.11a will be
dot16.org
As 802.11e QoS Hybrid Coordination Function (timeslots) has not shipped, there does not appear to be a way to turn 802.11 into a TDM system like 802.16, so that coordination via timeslots can work, but there was a proposal by the .16h chair that I have not seen yet (07/004).
I talked with a GSM/Wi-Fi phone user (OMA beta software), and he has flawless roaming indoors and outside (Cingular and Vodafone) on one phone, and nearly flawless with another vendor's phone. Looks like this Christmas season the US networks will offer dual mode phones.
petere |
