[SensorNetArch] Global Congestion Definition

[Cheng Tien Ee]

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