Hello,
Am 22.01.2013 um 13:54 schrieb Steve Song:
A colleague of mine is building a batman-adv mesh network in an apartment building with essentially one node per apartment. Not surprisingly, results in a very dense mesh with each node having a large number of neighbours. Here is a typical batctl o output http://pastebin.com/aAR43hj7 This results in some fairly slow connections.
I am seeking some general advice on how to optimise batman-adv in the context of a dense mesh. Options that we have considered include turning the radio transmit power down on all of the devices and/or alternating channels on different floors (e.g. 1,6,11,1,6,11,etc). However, it is not clear to us what is the best strategy in this context. Grateful for any tips or suggestions you may have.
using different channels is always a good idea when it comes to crowded places. Another option in to use 5 Ghz for mesh and 2.4 Ghz for clients.
Another options is to use less nodes - one node per appartment might be too much.
Turning down the transmit power can help, but might have the opposite effect. (Interference- vs. transmission range)
Another - imho the most important rule - is to limit hops Each hop limits the total throughput: if using same wireless channels one hop cannot forward data while receiving. It has to wait.
To summarize: -> Minimize the (expected) hop count. -> Use as many channels as possible (incl. 5 Ghz) -> Use as few nodes per channel as needed to provide coverage
Keep smiling yanosz