Hi Anand,
Regarding to power management, there is a parameter in the IEEE802.15.4 PIB,
i.e. phyTXPower. You can control the transmitting power by changing its value.
Is that what you want? If so, I think 6tisch MIB will provide the interface to
access phyTXPower, which will be defined in the 6tisch-interface draft.
ThanksQin
On Saturday, June 6, 2015 2:50 PM, "[email protected]"
<[email protected]> wrote:
Hi Kris,
Thanks!
I was not sure if and how such a parameter can be accommodated in the
current scheme of things, although it could be a useful control parameter
from the operator's perspective.
Anand
> seems like a good idea.
>
> ksjp
>
> On 6/4/2015 4:15 AM, SVR Anand 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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