We actually solve the issue by using 802.11a for high density
environments. We still provide G coverage but our policy has been that
if you want guaranteed throughput and coverage in a classroom
environment then an 11A AP should be installed for every 20-25
students. When we first implemented the policy there were a few issues
because so many laptops came 11b/g only. But we're seeing more and more
bring in tri-mode
laptops so it's been less of an issue. I agree with the statement
below. If necessary use only 3 11G AP's to get the folks that only have
11G cards but make sure you have enough 11A AP's to handle everyone.
Rick
Ken LeCompte wrote:
First, I don't think 50 users in a room is much to worry about for any
pair of modern access points. Unless the users are all going to be
high throughput users. For large open lecture halls being setup with
the highest throughput in mind my recommendation regardless of
equipment would be:
1. 3 channel(1,6,11) layout only with 2.4Ghz radios NO 4
channel(1,4,8,11) layout in open spaces
2. Ceiling mount antennas and use directional patch antennas NOT
omni-directional antennas
3. Turn power down and don't be too worried about RF absorption, since
it will actually help focus your client radios onto the best access
point.
--
Richard E. (Rick) Brown
Network Systems Engineer
Communication Technologies
Office of Information Technology
N.C. State University
(919) 515-5489 office
(919) 515-1641 fax
(919) 601-1651 cell
[email protected]
http://www.ahecta.org/
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