Speaking of Quality Attenuation (∆Q), I just published this introduction to the topic: https://www.domos.no/blog/g89z4cra52qpet85ajfihwx0ykd7m2 It's meant as a high-level intro, so no heavy math. Cheers, On Mon, 28 Nov 2022 at 19:59, Bjørn Ivar Teigen wrote: > Hi everyone, and thank you very much for the introduction Dave! > > > I've been low-key following the Libreqos stuff for a while now, and I'm > very impressed by what you are doing. > > At Domos we're focusing on convincing ISPs (EU and US mostly) that > consistent low-latency is the metric they should be focusing on (and that > latency performance is, in fact, generally very bad). That starts with > measurements, and our solution is based around doing > latency measurements from home gateways. > > The document Dave is referring to is public here: > https://www.broadband-forum.org/download/TR-452.1.pdf > > It describes a standard way of measuring latency+loss (Which is what > quality attenuation is; A combination of latency and loss in a single > concept). > > I've signed up for this mailing list now so please shout if you need me :) > > > Cheers, > > > On Mon, 28 Nov 2022 at 19:00, Dave Taht wrote: > >> All: >> >> Intro to bjorn, head of research for domos.no in the eu. Attached is a >> recent paper of his looking over how wifi works using their analytical >> methods. >> >> For the record, the math behind ∆Q makes my head hurt. It has always >> made my head hurt. I understand packet loss, FQing and delay, and have >> been seeking a good analytical method, in paritcular, for >> videconferencing quality, for quite a while. I was happy to see all >> the netflix metrics go by the other day... >> >> Also bjorn had sent me a really big document about some broadband >> forum work his group is doing, and I don't remember if that was public >> or private, he'd asked me to review it >> at least, and I spaced on it halfway through, and perhaps it is >> published now and he can point us in the right direction. (sorry >> bjorn! Terrrrrribly busy here of late) >> >> Domos is positioning itself as a "latency manager" - seemingly >> primarily in the eu 5G and Docsis markets, with APIs to "control >> stuff" at the kind of layer libreqos works at. We here >> are mostly positioned in the WISP and fiber markets, as well as >> perhaps other forms of managed networks... tho it would be nice if 5G >> in particular was paying more attention! >> >> ... and we all are trying to work together to reduce latency on the >> internet, and perhaps there will be synergy someday here. >> >> Anyway, an intro to domos: https://www.youtube.com/watch?v=cO-8Q1N9TKU >> >> ---------- Forwarded message --------- >> From: Bjørn Ivar Teigen >> Date: Thu, Oct 20, 2022 at 11:06 AM >> Subject: Quantifying the quality attenuation of WiFi >> To: Dave Taht >> >> >> Hi Dave, >> >> I saw your tweets about the p99 conference. This paper of mine about >> latency distributions on WiFi was just published at the LCN 2022 and I >> thought you might enjoy it! >> >> Cheers, >> Bjørn >> >> >> -- >> This song goes out to all the folk that thought Stadia would work: >> >> https://www.linkedin.com/posts/dtaht_the-mushroom-song-activity-6981366665607352320-FXtz >> Dave Täht CEO, TekLibre, LLC >> > > > -- > Bjørn Ivar Teigen > Head of Research > +47 47335952 | bjorn@domos.no | www.domos.no > -- Bjørn Ivar Teigen Head of Research +47 47335952 | bjorn@domos.no | www.domos.no