[Battlemesh] mesh protocol for lora

Henning Rogge hrogge at gmail.com
Tue Aug 30 17:05:45 CEST 2016

On Tue, Aug 30, 2016 at 1:24 PM, Juliusz Chroboczek <
jch at pps.univ-paris-diderot.fr> wrote:

> > 300 bit/s is tough... even sending an empty IPv4 UDP packet would
> normally
> > cost 14+20+8=42 bytes, which block a channel like this for more than a
> > second.

> You'd probably need header compression, perhaps combined with link-layer
> fragmentation.  I'd look at ROHC, 6lowpan, and perhaps some of the work of
> the RPL crowd (not the RPL protocol itself, which is overkill in your case
> since you have plenty of RAM and CPU power, but their experiences with
> low-throughput links).
> ROHC for multicast is always a bit tricky, but doable... would reduce the
overhead of IP and UDP to 3 bytes.

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