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From: Marek Lindner <lindner_marek@yahoo.de>
Date: Thu, 5 May 2011 17:44:39 +0200
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Subject: Re: [B.A.T.M.A.N.] Routing decisions
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Hi,

> We are evaluating using Batman in an environment where there could be
> 200-300 devices in a single building.  We started out setting up 10
> devices in our office to figure out how everything works and do some
> throughput testing.  We have noticed that the routing decisions always
> send the packet to the node towards the destination with the highest
> signal strength.  This causes the packet to always traverse the
> network with the maximum possible number of hops, which causes
> performance to degrade quickly.  Is it possible to use a different
> routing algorithm?  It would seem that sending to the node closest to
> the destination that the source node can still communicate with
> directly would minimize the number of hops.

if you wish to minimize the number of hops you have to increase the hop 
penalty. Check the "hop penalty" section here:
http://www.open-mesh.org/wiki/batman-adv/Tweaking

Regards,
Marek