[lormayna]

I am an happy user of Meshstastic since more than one year (I have two active nodes and a third one is in the making). I am living in hilly countryside and the difficult that I have experienced is about reaching other nodes: with the standard antenna, I can barely connect with nodes in a 500 meters range, with a better antenna (coaxial collinear is the best IMHO) I can reach more than 10km.

I don't think the Meshstatic approach of "flooding" the network with all the messages can be scalable in the long run, they need to implement some sort of routing protocols (like BATMAN), but they are heavy and complex to implement

[neilalexander]

None of MeshCore, Meshtastic or Reticulum will scale well, especially not on top of a heavily constrained radio technology like LoRa. Flooding is inefficient for obvious reasons, AODV-esque routing (which MeshCore tries to do for DMs and Reticulum tries to do in general) is prone to almost-immediate path failure on unstable underlying transports, and the hidden node problem always bites on haphazard/unplanned mesh radio deployments where people show up with nodes in random locations on the same frequency.

The cracks are already extremely visible in MeshCore in the UK, where overheads from adverts and dropped packets from collisions mean it is already horrendously unreliable and most of the chatter in the Public channel is people sending test messages and being unsure whether anything they sent was ever heard by anyone.

Most other routing protocols (BATMAN included) are also not that well suited to situations where the underlying transport ends up asymmetric, e.g. one node can't hear others but it can be heard, and that's an extremely common occurrence/failure mode in wireless meshes like this. It's a difficult problem to solve with coordination between nodes, let alone without.

[PaulHoule]

You have two conditions: not dense enough or too dense and the fractal nature of population mean you can have both. Radio bandwidth is a precious resource and if you think somehow that anything good will come out of sending a packet N times you are not likely to manage a wireless network successfully.

There are systems like

https://en.wikipedia.org/wiki/Automatic_Packet_Reporting_Sys...

But they are pretty specialized and not that scalable

[ysnp]

Any promising mesh networks, radio networks or routing protocols worth looking into?

[lormayna]

Agree! And we need also to consider that a mesh protocol for Meshtatic/Meshcore should support mobility and have to run in a low power devices