[MLB-WIRELESS] Hypothetical: takedown notices

[Ryan Abbenhuys]

I can't recall where exactly i heard it, but it was from someone who seemed
pretty cluey about RF and wireless technology.  When people first brought up
the idea of a mesh of omni-directional antennas my first thought was that
surely the interferance from surrounding nodes would outweigh the benefits
of redundant links.

I'd imagine with well selected antennas and good channel management a mesh
with PtP directional links could work.  But if this is the path you go down
you might find you end up with links that end up being used like backbone
links, and other links that become leaf's. And then you end up with a
backbone/leaf network anyway.
Even with the backbone/leaf network that is happening out here I am trying
to manage channels we use, directions out antennas point, types of antennas
we use, etc.  My goal being maximum performance and maximum geographical
reach/coverage.

----- Original Message -----
From: "John Dalton" <john.dalton at bigfoot.com>
To: <sneeze at alphalink.com.au>
Cc: <melbwireless at wireless.org.au>
Sent: Thursday, March 06, 2003 8:23 PM
Subject: Re: [MLB-WIRELESS] Hypothetical: takedown notices


> > I've heard that a true wireless mesh won't work because the noise floor
> > increases too rapidly and the network speed dies in the ass.
>
> If you have any specific information on this, could you please forward it
to me?
> I'm aware of at least one paper written in this area (which I have
> yet to read).  My understanding is that given certain assumptions
> a high density wireless 'mesh' with omnidirectional antennas will not
work.
>
> Having said that I think it would be premature to write off a mesh
> before reviewing the literature.  It may turn out the assumptions on
> which the calculations were based are not realistic, so the results
> don't apply to a real network.  For example, it may work with directional
> antennas, or the reports we have been hearing may be just plain wrong.
>
> Regards
> John
>


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