B.A.T.M.A.N Protocol Concept (2011) (open-mesh.org)

All mesh routing protocols suffer from O(N^2) path data and traffic, collapsing at a few thousand nodes.

Apparently it stands for "Better Approach To Mobile Ad-hoc Networking".

Interesting, the protocol seems to assume symmetrical performance i.e. X-...->Y and Y-...->X will have the same latency so long as they follow the same path?