[Battlemesh] Talk about DFS in 5 GHz mesh networks
Roger Baig Viñas
roger.baig at gmail.com
Tue Feb 25 18:43:09 CET 2014
On 25 February 2014 18:20, Ben West <ben at gowasabi.net> wrote:
> I would be keen to see slides or summary of this talk, if they would be
> made available somewhere offline after the Battlemesh.
... in the previous editions great efforts have been made to gather as much
as information as possible in the "agenda" page (i.e. for v6
http://battlemesh.org/BattleMeshV6/Agenda). Also a lot of info has been
gather in the download site (http://download.battlemesh.org/). I'm sure
that this year the "WBM information system/team" will even make a better
> In particular, I'm curious about the following details related to DFS
... I think it can be a good practice that those who have special interest
in a given talk ask questions and make requests before the talk.
> - Suitable schemes for DFS channel-hopping in a mesh. E.g. how can all
> nodes coherently hop channels en mass, so as not to orphan some nodes?
> - General situation with regulatory compliance. Here in the US,
> DFS-capable radios like UBNT Nanostations are "sticker-certified," but it
> is unclear whether details like what firmware the device is actually
> running may affect that certification. Under strict interpretation, it may
> mean the FCC (and analogous regulatory agencies) will only permit operation
> of these products on DFS channels with the firmware used in certification,
> regardless of whether the OpenWRT-based DFS implementation is functionally
> - Beaconing on DFS channels? It's not allowed here in the US (to my
> understanding), meaning no conventional adhoc on those frequencies?
> On Mon, Feb 24, 2014 at 7:55 AM, Simon Wunderlich <sw at simonwunderlich.de>wrote:
>> I'd like to submit another talk proposal:
>> Title: DFS in 5 GHz mesh networks
>> Abstract: The 5 GHz band is an interesting alternative to the crowded 2.4
>> ISM band to set up mesh networks. However, DFS (Dynamic Frequency
>> support is required in many countries to avoid disturbing primary users
>> military or weather radar systems), and DFS support was not available in
>> source drivers until last year.
>> In this talk I'll present what DFS is and how it can be handled,
>> summarise the
>> current status in open source drivers and userspace tools, and discuss
>> limitations and requirements to get it running in mesh networks.
>> Time slot would 60 minutes for 30-40 minutes talk time and 10-15 minutes
>> questions. I'd also like to use a projector.
>> Battlemesh mailing list
>> Battlemesh at ml.ninux.org
> Ben West
> ben at gowasabi.net
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