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Hi Ben,<br>
<br>
TDMA doesn't require synchronization between the radios. This would
be Ubiquiti's AirSync technology and that's for another usage. When
you have two or mode radios colocated in a tower receiving and
transmitting at the same time so it avoids them do it at the same
time and synchronizes Receive and Transmit.<br>
<br>
TDMA is more to be used in PtMP environments where you have multiple
customers talking to the AP and they don't see each other, so the AP
is able to organize more correctlly the time each one sends data.
That's probably why it was only implements on proprietary systems
usede by WISPs with different names.<br>
<br>
Regards,<br>
<br>
Fernando<br>
<br>
<div class="moz-cite-prefix">On 03/07/2014 19:59, Ben West wrote:<br>
</div>
<blockquote
cite="mid:CADSh-SNLSUTMAaO=+cKW88iuOPHzSM6gEGqLtcnfCQTRBNpnQQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>In an old thread on the Battlemesh listserv about
strategies for dealing with a mix of strong / weak clients for
PtMP, someone offered this pointer for JaldMAC, an open 802.11
polling implementation in ath9k:<br>
<br>
<a moz-do-not-send="true"
href="http://matthias.vallentin.net/papers/nsdr10.pdf"
target="_blank">http://matthias.vallentin.net/papers/nsdr10.pdf</a><br>
<a moz-do-not-send="true"
href="https://github.com/shaddi/jaldimac/commits/master"
target="_blank">https://github.com/shaddi/jaldimac/commits/master</a><br>
<br>
Unfortunately, that repo has sat idle for over 2 years, and I
believe it it was more a proof of concept rather than a usable
implementation.<br>
<br>
</div>
Also, i believe TDMA requires very tight synchronization between
all radios, hence the inclusion of GPS modules on proprietary
implementations.<br>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Thu, Jul 3, 2014 at 11:02 AM,
Fernando Frediani <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:fhfrediani@gmail.com"
target="_blank">fhfrediani@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
Is anyone aware of any implementation of TDMA mode support
in OpenWRT (similar to Ubiquiti's AirMAX, Deliberant's iPoll
or MikroTik's NV2, etc)<br>
<br>
Would that have to be implemented having in mind the radio
driver or could it possible also be implemented in any
router ?<br>
This is certanlly something significant for more throughput
demanding and crowded environments.<br>
<br>
Best regards,<br>
<br>
Fernando<br>
_______________________________________________<br>
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<a moz-do-not-send="true"
href="mailto:openwrt-devel@lists.openwrt.org"
target="_blank">openwrt-devel@lists.openwrt.org</a><br>
<a moz-do-not-send="true"
href="https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel"
target="_blank">https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel</a><br>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
Ben West
<div><a moz-do-not-send="true" href="http://gowasabi.net"
target="_blank">http://gowasabi.net</a><br>
<a moz-do-not-send="true" href="mailto:ben@gowasabi.net"
target="_blank">ben@gowasabi.net</a><br>
314-246-9434<br>
</div>
</div>
</blockquote>
<br>
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