[Battlemesh] Dynamic TX power
fboehm at aon.at
Fri Jan 1 16:16:52 CET 2016
Am 31.12.2015 um 18:19 schrieb Henning Rogge:
> On Thu, Dec 31, 2015 at 5:08 PM, fboehm <fboehm at aon.at> wrote:
>> Just a short addition to full-power beacons:
>> Not always the best idea because beacons (with low modulation rate) will be
>> heard by distant nodes that might not be able to achieve meaningful
>> throughput later on. The result could be waste of valuable airtime because
>> of a weak link with low modulated data packets and many retransmissions.
> I think you are mixing up layer2 and layer3...
> on the layer2 you have no concept if you NEED a link... it might be
> the only one to the neighbor... in some cases it might be your only
> link to the internet gateway.
> Filtering your wifi links by restricting beacons to low-power (or
> higher modulation) might just fragment your mesh.
>> But you can also leave it to the routing protocol to detect such sketchy
> you can easily (on the routing level) decide not to use a link that is
> bad (if you have an alternative).
> it is impossible to use necessary links that were not found because
> the beacons were too weak.
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Yes, in a mesh-network you are right.
I was also thinking of traditional (enterprise) wireless access-networks
where overly powered beacons create the false impression of a bigger
coverage area and attract devices that are practically out of range.
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