[Sugar-devel] GSoC Proposal: Multimedia Broadcasting

[Martin Langhoff]

On Sun, Apr 5, 2009 at 8:48 PM, Benjamin M. Schwartz
<bmschwar at fas.harvard.edu> wrote:
> I'm not aware of any problems using UDP broadcast on 802.11abg.  Could you
> elaborate?

Broadcast frames will be sent at the lowest speed -- IIRC, ot should
be the lowest common speed supported by all associated nodes, but the
experimental outcomes lead to suspicion that many APs just go straight
for the lowest. That's 1Mbps. And it takes over all the "air time"
too, starving all other users.

So there is room for very interesting work in finding viable ways to
broadcast and unicast screencasts, but it will necessarily be a lot of
heavy lifting looking at the 802.11abg (and maybe even s) layer in
making broadcast work for many users in dense environments.

btw: sugar-dev back on the cc list -

cheers,



martin
-- 
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