[AG-TECH] AG on wireless

Jay Beavers jbeavers at microsoft.com
Fri Mar 22 11:57:16 CST 2002

I would disagree with the assessment that AG scenarios are too heavy for
wireless networks.

We comfortably fit four way conferencing, with one of the four streams
being 640x480, in 3 Mb/s today using Windows Media compression.
Assuming we limited ourselves to 6 Mb/s of bandwidth, we could add
another 7 320x240 streams at ~400 kb/s for audio, video, and data
bringing us up to 11-way conferencing.

Certainly, using more bandwidth per stream (such as MJPEG compression)
or trying to do 20-30 streams isn't feasible over 802.11b, but for the
sweet spot of 4-7 room conferencing, wireless is completely feasible.

-----Original Message-----
From: Allison Clark [mailto:aclark at ncsa.uiuc.edu] 
Sent: Friday, March 22, 2002 8:47 AM
To: ag-tech at mcs.anl.gov
Subject: Re: [AG-TECH] AG on wireless

Ag-tech always has such lively discussions. My question stemmed from the

Advanced Networking with Minority Serving Institutions (AN MSI) program 
that has a little money to fund some ag node testbeds at MSIs. The
of wireless came up for one of the schools. I wanted to check with the 
experts as I don't want the testbed to be too far out there - it
needs to work. Bottom line -sounds like it will suck up too much
Once again thanks to everyone.

Allison Clark, Ph.D.
Assistant Director, Digital Equity Initiatives
NCSA/The Alliance
152 CAB
605 E. Springfield Ave.
Champaign IL 61820
Phone: 217-244-0768
Cell:   217-493-8935

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