[Battlemesh] recommendations for 40Km Link / OpenWRT on ubnt ath9k hw ? / AirMax

[Laurent GUERBY]

On Tue, 2014-03-25 at 14:53 +0100, fboehm wrote:
> Sounds like a perfect example for a hidden-node(s) situation. It totally 
> makes sense that AirMax is faster in that case. Every other MAC Layer 
> based on polling clients or allocating timeslots would be better than 
> plain CSMA/CA.
> 
> Regards,
> Franz

May be enabling RTS/CTS with a suitable threshold on the clients
would work?

Laurent

> Am 25.03.14 14:35, schrieb Musti:
> > The setup we had running with AirMax for about a year:
> >
> > AP on a mountain, about 5 clients around in 20km radius. With AirMax throughput was about 10times what we get now with openwrt, with significantly more packet loss. Prior to that we found out that AirOS without AirMax is comparable to openwrt.
> >
> > Regards,
> > Musti
> >
> >
> > On 25 Mar 2014, at 14:18, Laurent GUERBY <laurent at guerby.net> wrote:
> >
> >> On Tue, 2014-03-25 at 13:52 +0100, Musti wrote:
> >>> Hi,
> >>>
> >>> in wlan slovenia network we are slowly looking at migrating from AirOS
> >>> to openwrt for UBNT devices, however the tests for now show that ath9k
> >>> performs worse then UBNT AirMax. The difference is rather small in PtP
> >>> links, however fails horribly at PtM as there is no TDMA.
> >>
> >> Hi,
> >>
> >> We tested with and without AirMax and found out not much differences
> >> except in certain case (colocation of close antennas) AirMax
> >> wasn't working at all (horrible bandwidth performance, slow to access
> >> web admin). In the end we've been running AirOS without AirMax for a
> >> while now both PtP and PtM
> >>
> >> Do you have detailed performance results with and without AirMax ?
> >>
> >> Sincerely,
> >>
> >> Laurent
> >>
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