There was a nice paper in the ITA conference from Umass, about how to build cooperative antennae systems in ad hoc nets - so my idea is to combine this
with each node carryin a phase array antennae system
and beating the Gupta-Kumar limit for capacity of multihop nets (capacity decreases with 1/aqrt(n) or something) - the idea is to have a hybrid of
each node running a phase array, but the distribution (spacing) of antennae being a different prim number of wavelengths on each node -then when the nodes all cooperate to send in phase to get beam forming, the side lobes will all be decoherent by guarantee.
i mentioned this idea to the authors of the paper - they are building a prototype so it ought to be easy to add this version in - if it works, you'd get capacity of a
n-node net in a fixed volume as linear in the number of nodes (i.e. whaever link capacity each node gets does not decrease as you add other nodes) - this would effectively give you an arbitrary capacity net
the nice thing with beam forming is you get to do range extension too....