Hi Koen, awesome! IMO this is interesting work and I'd like to push this forward, at least to use it myself at some point in time, though I can't promise an in-depth review so soon -> let's start polishing "later".
Did you already start measurements of the actual consumption saving of a node? Do you plan to evaluate your approach in different network topologies? Cheers Peter On 22.06.2017 22:00, Koen Zandberg wrote: > Hello, > > For a small research project as a part of my study, I did some research > on the effectiveness of dynamic radio output scaling. The general idea > is that to save power, the radio has to transmit at only the power > required to reach the destination. For the research I wanted to build a > practical setup instead of a simulation as one of the research goals. > > The setup I've build works by estimating the minimum required powered > and using layer 2 acks (or the lack thereof) as feedback. At this point > I have a mostly working power scaling proof of concept implemented in > RIOT. For an example measurement: https://bergzand.net/misc/etx5.svg > which is a measurement of a number of packets. The blue dots is an ETX > estimation measured based on the feedback from the radio module. The Red > line is the power configured for that packet. As visible, power is > scaled down until a stable level is reached. Power keeps oscillating > around this level until a lot of interference is noticed, then the power > sweeps back up. > > The merit of this whole idea is that it should both save the node power, > but when implemented correctly also improve the total throughput of the > network. This last point because nodes transmit with less power, thus > causing less interference with nodes further away. > > If there is interest in having this feature merged in mainline RIOT-os, > I'm willing to work on this to make sure that the code quality is as > required. The code can be viewed and tracked at > https://github.com/bergzand/RIOT/tree/mwn2 > > Regards, > Koen > > _______________________________________________ > devel mailing list > devel@riot-os.org > https://lists.riot-os.org/mailman/listinfo/devel > -- Peter Kietzmann Hamburg University of Applied Sciences Dept. Informatik, Internet Technologies Group Berliner Tor 7, 20099 Hamburg, Germany Fon: +49-40-42875-8426 Web: http://www.haw-hamburg.de/inet _______________________________________________ devel mailing list devel@riot-os.org https://lists.riot-os.org/mailman/listinfo/devel
