[SensorNetArch] Global Congestion Definition

[David Culler]

I think you did a very nice job of seeding the discussion.  It would 
make sense to look at Barbara Holte's Flexible Power Scheduling too.

Cheng Tien Ee wrote:

> Hi,
> 
> I learnt a lot from today's meeting. There's this point I think I got 
> wrong: the definition of global congestion. I would say that global 
> congestion occurs when source motes generate packets over a period of 
> time long enough for the congested mote to send feedback and rate-limit 
> the sources. If the source motes don't generate traffic long enough for 
> the feedback to reach them, then I would consider that to be local 
> congestion. That's what I usually think when I hear the term.
> 
> Sorry about the confusion.
> Ee
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