Re: [BP] Signaling spread sheet
Mike,
To start with, I think that I can state pretty confidently that here is
no implementation, coding, or channel bias in this spreadsheet ...
mostly because it's almost entirely blank!
I have used a worst-case assumption for summarizing the channel
performance, because I can only fit so much data on my screeen, and
nobody in the group has proposed another metric for summarizing this.
If a metric exists, which the group accepts, then I will happily enter
it into the spreadsheet.
I suggest that the best way to proceed, if this is not an appropiate
method of reducing channel BER results, is to propose another complete
and unambiguous metric for this comparison which the group can then vote
on.
.../Mike
-----Original Message-----
From: Mike-Lerer [mailto:mike@mike-lerer.com]
Sent: Tuesday, November 02, 2004 5:10 AM
To: Altmann, Michael W; STDS-802-3-BLADE@listserv.ieee.org
Subject: RE: [BP] Signaling spread sheet
In reviewing the spreadsheet, I believe that you are once again making
unreasonable assumptions about the interests of the majority of the task
group.
If I interpret the spreadsheet correctly, you are characterizing each
signaling scheme by its worst performance over any channel.
I believe that it is unreasonable to characterize a signaling scheme in
this
way unless or until the group makes a formal decision that each of the
channels falls within its required objectives.
As you will recall, at the last face to face meeting several motions
were
attempted to select channels for use in signaling evaluation, all of the
motions failed.
Until the group is able to make a definitive statement about which
channels
are required to be supported, desired to be supported, and merely of
interest as anomalous experiments, it is unreasonable to combine all the
results into one metric, as you have done.
Mike Lerer
Box 636
Londonderry, NH 03053
Home: 603-434-4205
Cell: 603-548-3704
-----Original Message-----
From: owner-stds-802-3-blade@listserv.ieee.org
[mailto:owner-stds-802-3-blade@listserv.ieee.org] On Behalf Of Altmann,
Michael W
Sent: Friday, October 29, 2004 1:44 AM
To: STDS-802-3-BLADE@listserv.ieee.org
Subject: [BP] Signaling spread sheet
Dear IEEE802.3ap TF Members (Signalig ad hoc),
Further to our discussions regarding comparison metrics for signaling
schemes, I created the first cut of a spreadsheet for coding selection
similar to that used by the 10Gbase-T Task force. Comments/critiques
are all welcome. I am not planning to discuss this in the signaling ad
hoc on 29 October, given it's relative new-ness.
Regards.
.../Mike
<<IEEE Coding Table v3.xls>>