"Mesh" Dreams = OLSR

L. Aaron Kaplan aaron at lo-res.org
Tue Aug 24 13:19:56 EDT 2010


On Aug 24, 2010, at 7:11 PM, Reuben K. Caron wrote:

> 
> On Aug 24, 2010, at 11:24 AM, Richard A. Smith wrote:
> 
>> The largest of our mesh problems did not have to do with scalability on sheer number of nodes but rather scalability in density.  Is there any information available on how these networks perform when there are 50 - 100 of them next all in the same room or in adjacent rooms?
> 
> Here is a link to a paper that actually tested in a physical 49 node lab with various configurations:
> 
> http://dev.laptop.org/~reuben/Elsevier2008_OLSR_compare.pdf
> 
> This differs from most other papers that I have read that use theoretical simulations.
> 

Yes, IMHO you *need* the real world simulations (and even then it is very easy to make measurement mistakes and arrive at arbitrary conclusions [1]). I started to only trust big real world deployments.

Thanks for the link, still have to read it in detail. BTW: the conclusion section of this paper already confirms our previous discussion about reducing txpower: "Currently hop counts up to 5 are achievable with routing protocols in the full 7x7 grid when the power is set to 0dBm with 30 dB attenuators."

;-)

a.

[1] @ARTICLE{Kurkowski05manetsimulation,
    author = {Stuart Kurkowski and Tracy Camp and Michael Colagrosso},
    title = {Manet simulation studies: The incredibles},
    journal = {ACM SIGMOBILE Mobile Computing and Communications Review},
    year = {2005},
    volume = {9},
    pages = {50--61}
}

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.110.7902&rep=rep1&type=pdf

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