I was inspired by the Armachat Doomsday Communicator to look restart my Wakan uDTN project  The goal is to support text and push to talk near real time voice (using codec2) messaging on a DTN of 200k nodes. the idea is to support a people tracking service to deal with the Missing persons issue facing indigenous communities.  Eventually I want to develop a $30-$60 cellphone replacement with full PIM features like the PalmPilot. 

So far I'm found RF Mesh Network, This paper on Ripple, B.A.T.M.A.N.,  Bundle Protocol v7, PainlessMesh, and The Serval Project.

I'm still waiting on my lora dev boards so an starting on a network simulator. I'm decided to use OMNeT++.  I'm trying to get a hold on the Open Source B.A.T.M.A.N. V OMNet++ simulation mentioned in Performance Evaluation and Optimization of B.A.T.M.A.N. V Routing for Aerial and Ground-based Mobile Ad-hoc Networks. I'll start with FLoRA  framework once I get done with the OMNeT++ tutorials.