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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Starlink
[mailto:starlink-bounces@lists.bufferbloat.net] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Bob McMahon<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, August 2, 2021 6:24
PM<br>
<b><span style='font-weight:bold'>To:</span></b> Leonard Kleinrock<br>
<b><span style='font-weight:bold'>Cc:</span></b> starlink@lists.bufferbloat.net;
Make-Wifi-fast; Cake List; codel@lists.bufferbloat.net; cerowrt-devel; bloat<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Starlink] [Cake]
[Make-wifi-fast] [Cerowrt-devel] Due Aug 2: Internet Quality workshop CFP for
the internet architecture board</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I found the following talk relevant to distances between all the
nodes. <a href="https://www.youtube.com/watch?v=PNoUcQTCxiM">https://www.youtube.com/watch?v=PNoUcQTCxiM</a>
<br>
<br>
Distance is an abstract idea but applies to energy into a node as well as
phylogenetic trees. It's the same problem, i.e. fitting a distance matrix using
some sort of tree. I've found the five branch tree works well for four nodes.<font
color=navy><span style='color:navy'><o:p></o:p></span></font></span></font></p>
<p class=MsoNormal><b><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold;
font-style:italic'>[RR] These trees are means for approximating a higher
dimensional real-world problem with a lower dimensional structure. You may be
doing this to save hardware when trying to cable up some complex test scenarios,
however I’m wondering why? Why not just put the STAs in the lab and turn them
on rather than cabling them?<o:p></o:p></span></font></i></b></p>
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12.0pt'><br>
<br>
Bob <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Mon, Aug 2, 2021 at 5:37 PM Leonard Kleinrock <<a
href="mailto:lk@cs.ucla.edu">lk@cs.ucla.edu</a>> wrote:<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>These cases are what my
student, Fouad Tobagi and I called the Hidden Terminal Problem (with the Busy
Tone solution) back in 1975.<br>
<br>
Len <br>
<br>
<br>
> On Aug 2, 2021, at 4:16 PM, David Lang <<a href="mailto:david@lang.hm"
target="_blank">david@lang.hm</a>> wrote:<br>
> <br>
> If you are going to setup a test environment for wifi, you need to include
the ability to make a fe cases that only happen with RF, not with wired
networks and are commonly overlooked<br>
> <br>
> 1. station A can hear station B and C but they cannot hear each other<br>
> 2. station A can hear station B but station B cannot hear station A 3.
station A can hear that station B is transmitting, but not with a strong enough
signal to decode the signal (yes in theory you can work around interference,
but in practice interference is still a real thing)<br>
> <br>
> David Lang<br>
> <o:p></o:p></span></font></p>
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