Cerebro: Scalable presence information

[Erik Blankinship]

eXcellent name choice!


On 12/31/07, Polychronis Ypodimatopoulos <ypod at mit.edu> wrote:
>
> Announcing "Cerebro" - http://cerebro.mit.edu
>
> Cerebro is a scalable, light-weight protocol that allows 802.11b/g
> devices to form a mesh network. Cerebro has the following advantages:
>
> - It provides presence information about 100 nodes using only a single
> frame per 10 seconds, per node.
> - It runs on _any_ 802.11b/g device (tested on XO, Ubuntu, Nokia N800)
> - It can (but not yet) provide routing information within the mesh
> network that is formed by regular wifi devices.
>
> Demo:
>
> http://lyme.media.mit.edu:8000/
>
> The simulation running here shows 50 simulated nodes and a real one
> (shown in the center of the screen). The nodes within the same group are
> all in range with each other, but each group is not in range with other
> groups. As a result, nodes within the same group are placed close
> together, whereas different groups are placed as far apart as possible.
> All nodes have information about presence and distance for every other
> node.
>
>
> There are 50 nodes simulated in 8 groups of 5 nodes and 1 group of 10
> nodes. Although the presence algorithm scales quite well, the
> visualization does not scale as well (yet :-). Therefore, only the first
> 20 nodes are displayed properly, while the rest are simply put in the
> list on the right.
>
>
> A sugarized version of the UI will follow soon!
>
> Enjoy!
>
> Pol
>
>
> --
> Polychronis Ypodimatopoulos
> Graduate student
> Viral Communications
> MIT Media Lab
> Tel: +1 (617) 459-6058
> http://www.mit.edu/~ypod/ <http://www.mit.edu/%7Eypod/>
>
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>
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