Nate Duehr wrote:

> Mathematics shows that in cases where some stations can hear others, 
> whereas a third station (or fourth, fifth, sixth) can only hear one of 
> the original two stations, there's a cap on effective channel throughput 
> as eventually the channel (in the worst-case scenario) becomes saturated 
> with re-tries to re-send "crashed" packets of data... no matter how hard 
> you try to randomize the re-try back-off timers.

Which is why 'Cognitive Radio' won't work...but that's a totally 
different topic...

-- 
Jim Barbour
WD8CHL

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