Thomas,
Yes. I would think a change to the 6top interface MIB should do. Michel's
idea of using BEACON IE for the joining nodes is very interesting to pursue.
Anand
On Tue, 9 Jun 2015, Thomas Watteyne wrote:
Anand,
Possibly useful, and I believe a small change to the 6top interface.
Thomas
On Thursday, June 4, 2015, SVR Anand <an...@ece.iisc.ernet.in> wrote:
Dear All,
A slight digression from the ongoing ML discussions. Hope the timing is OK!
As we all know, transmit power control is one of the powerful knobs that
can be
used to minimize the interference and thereby improve the wireless network
performance and also provide deterministic network. Cell breathing
technique
used in WLANs comes to our mind. When it comes to 6tisch, one might argue
that
with 16 channels at our disposal, the interference can be avoided through
smart
6top cell management interface without worrying much about transmit power
control. However, there can be scenarios where transmit power control
might be
required, for instance, (i) large scale dense deployments with heavy
traffic
demands (ii) Co-existing WiFi reducing available non-overlapping channels
for
15.4 (iii) prevent wireless leaks beyond the periphery of the deployement
region and (iv) OTF scheduling where nodes make local decisions for
managing
cells, may be more.
One possibility is to leave the power management to the nodes. We are then
leaving this to implementors to device their own algorithms to handle
interference. Alternatively, a centralised controller (NME) knowing the
information about conflicting links can adaptively and optimally adjust the
operating transmit power of the nodes to avoid the interference and
maximize
the wireless network performance.
If we treat transmit power as one of the controllable parameters along
with the
cell management parameters, wondering if 6tisch 6top interface MIB is the
place
to define this. Or this parameter is beyond the scope of 6tisch.
Any suggestions ?
Anand
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