"David P. Reed" <dpr...@deepplum.com> writes: > Conquer the spectrum licensing and device certification nexus. Or else > your cell is will pwn yr physical world. > > LTE over UNII band is not even as good as CSMA at sharing and > cooperation, and without coordination at installation planning time, > it doesn't work well. > > 802.11ax has the same fragility in Multi Unit Dwellings due to > requiring a radio propagation plan and coordination so neighbors don't > completely jam neighbors.
I have not been tracking ax well of late. I had heard they were doing smarter things with smaller channels, which gave me hope. > > Don't obsess about throughput at the link layer, when the design > assumes exclusive rights to transmit. Given how hard it has been to get a mere lte dongle to work right, I am inclined to disregard a lot of the 5G hype. > There are techniques for cooperative space-time-rate multiplexing that > scale. LTE licensed or unlicensed or 802.11ax are not such techniques. > > Small cells are a fantasy of the carriers that they can put their > licensed gear on your property at points they choose. Technically it > appears to work in an abstract fantasy prototype. In the real world, > it can't scale unless you let the phone company invade your premises > and control all your placement of furniture, doors, mirrors, etc. Well, I kind of envision that happening, unless we make wifi work really really well again. I loved learning about low-e glass recently, I think that is going to interfere with celluar, and make wifi deployments better. > ----Original Message----- > From: "Toke Høiland-Jørgensen" <t...@toke.dk> > Sent: Fri, Dec 7, 2018 at 4:08 am > To: "Dave Taht" <d...@taht.net> > Cc: "Dave Taht" <d...@taht.net>, "cerowrt-devel" > <cerowrt-devel@lists.bufferbloat.net> > Subject: Re: [Cerowrt-devel] dlte > > Dave Taht writes: > >> Toke Høiland-Jørgensen writes: >> >>> Mikael Abrahamsson writes: >>> >>>> On Tue, 4 Dec 2018, Dave Taht wrote: >>>> >>>>> I expect dave reed to comment, so I'll withhold mine for now >>>>> >>>>> https://kurti.sh/pubs/dLTE-Johnson-HotNets-2018.pdf >>>> >>>> When I read the first page I was hopeful, then unfortunately I got >>>> disappointed and just quickly scanned the rest. It's still >>>> tunneled and >>>> the same architecture, just more distributed. >>> >>> OK, now I read the paper, and I think you may have missed the part >>> where >>> they say that they terminate the tunnelling at the AP and assign >>> new IPs >>> whenever a client roams. So it's basically WiFi APs over the LTE >>> layer-2... Which is pretty cool, I think :) >> >> It's still based on the false optimism that users will ever get to >> own >> and control their own LTE AP. > > Well, they did say they had done proof of concept tests; and that they > could build a base station for $8000... So might not be completely > impossible... > > -Toke > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel _______________________________________________ Cerowrt-devel mailing list Cerowrt-devel@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cerowrt-devel