[Battlemesh] Talk about DFS in 5 GHz mesh networks

[Roger Baig Viñas]

Hi,

Generally speaking...

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
job.


>
> In particular, I'm curious about the following details related to DFS
> implementations:
>

... 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
> correct.
>
> - 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:
>
>> Hey,
>>
>> 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
>> GHz
>> ISM band to set up mesh networks. However, DFS (Dynamic Frequency
>> Selection)
>> support is required in many countries to avoid disturbing primary users
>> (e.g.
>> military or weather radar systems), and DFS support was not available in
>> open
>> 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
>> for
>> questions. I'd also like to use a projector.
>>
>> Thanks,
>>     Simon
>> _______________________________________________
>> Battlemesh mailing list
>> Battlemesh at ml.ninux.org
>> http://ml.ninux.org/mailman/listinfo/battlemesh
>>
>
>
>
> --
> Ben West
> http://gowasabi.net
> ben at gowasabi.net
> 314-246-9434
>



-- 
roger
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