ORBIT-USER: Limiting Connectivity

chris at orderonenetworks.com chris at orderonenetworks.com
Tue Aug 8 12:58:22 EDT 2006


Thanks for the reply.

For my experiment, I'd like to have as many devices as possible in the
network, but each device having limited connectivity such that only
directly adjacent nodes can hear each other.

Basically, I'm looking to create the largest, most complex routing problem
I can in a stable network. The more neighbors a node has, the easier the
routing problem - with the worst case having every node being one hop from
every other node.

Can I use these three injectors to allow this to happen? Or will I end up
with three islands of nodes that can't see anything and most other nodes
seeing many neighbors?

If the injectors can't do this, can you suggest any alternatives?

Thanks,
Chris


> Hi everybody,
>
> Sorry for the late reply regarding the noise generator - we were hoping
> that the replacement cable for one of the four interference injection
> antennas would arrive by now but it didn't (it is a custom cut piece of
> low loss LMR-600 cable for those of you who are interested in such
> details). Since quite a few people asked for it, we are going to release
> the interference injection subsystem with only three antennas which
> unfortunately means that we want be able to fully calibrate the setup
> until that fourth cable arrives. Our 120 custom made noise injection
> boards are in manufacturing at the moment with the expected delivery
> date before the end of the month; however we will need quite some time
> after that to get to the point where we have everything installed and
> catalogue of topologies available (you will be of course more than
> welcome to experiment with partially configured setup and come up with
> your own topologies even before we roll it out officially).
>
> Ivan.
>
> PS: We also desperately need to update the documentation on
> interference/noise injection since the small grid is not there any more.
>
>
> -----Original Message-----
> From: owner-orbit-user at winlab.rutgers.edu
> [mailto:owner-orbit-user at winlab.rutgers.edu] On Behalf Of
> chris at orderonenetworks.com
> Sent: Tuesday, August 08, 2006 9:28 AM
> To: orbit-user at orbit-lab.org
> Subject: ORBIT-USER: Limiting Connectivity
>
> Hello,
>
> I'd like to create a circumstance in the 400 node grid where only
> adjacent nodes are able to hear each other. I can deal with some spill
> over, but its important for my experiment that this is limited.
>
> I'm assuming the answer is a combination of noise generation and receive
> sensitivity adjustment. I'd like to avoid doing pure neighbor MAC
> filtering to avoid channel congestion.
>
> Has anyone done this before? or know of where I can find the best way to
> make this happen?
>
> Thanks for your help,
> Chris
>
>
>
>





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