Re: [10GMMF] Notes for TP2 call 1/13/05
Please remove my e-mail from your mailing list since I
am no longer involved with the IEEE 802.3aq
activities.
Thanks.
--- Tom Lindsay <tom.lindsay@CLARIPHY.COM> wrote:
> Attendees
> a.. Nick Weiner
> b.. Jan Peeters Weem
> c.. Piers Dawe
> d.. Greg Lecheminant
> e.. Tom Lindsay
> f.. Norm Swenson
> g.. Lew Aronson
> h.. Ali Ghiasi
> i.. Abhijit Shanbhag
> j.. Others who did not ID?
> Agenda discussed and approved (see below)
> Previous minutes/notes from 1/6 approved
>
> Technical progress
> a.. Objective - resolve as many details as
> possible by/before the Vancouver meeting Jan '05.
> b.. TWDP simulation tool
> a.. Status
> a.. Norm has sent MATLAB code for review to
> those who requested it. If others are interested in
> reviewing the code, contact Norm Swenson. Discussion
> of the code will be an agenda item for 1/20.
> b.. Jan ran the code with different waveforms
> (and now Piers with simulated noise), so it appears
> to be working for others.
> c.. Tom submitted comments to adopt the code
> into the next draft, when ready, and to include the
> normative information Norm discussed previously.
> b.. Presentation - see
>
http://grouper.ieee.org/groups/802/3/aq/public/upload/ResultsandcomparisonsforTWDP_MATLABcode.pdf
> by Tom.
> a.. Comparison to PIE-D
> a.. Preliminary comparison to John Ewen's
> PIE-D results across 108 fibers showed agreement to
> within ~0.04 dB.
> b.. Filter configurations
> a.. Previous discussions questioned whether
> a Bessel-Thomson filter would be a better approach
> for the anti-aliasing filter for the noise, with no
> additional filtering for the signal.
> b.. ClariPhy ran the code in both modes on a
> couple of laser waveforms and determined that this
> filter configuration gives slightly better results
> (~0.15 dB) than PIE-D. This can be explained by the
> fact that PIE-D assumes white noise, whereas the new
> approach filters (colors, reduces) the noise, making
> it better than PIE-D. In the other filter
> configuration, the code will treat noise as white
> with the Butterworth anti-aliasing filter being
> simply part of the matched filter.
> c.. Tom read an email from Lew saying that
> their results generally show TIA noise spectra as
> similar to the signal frequency response.
> d.. This all led to a discussion of whether
> the definition of PIE-D should change, since perhaps
> real receivers may benefit from noise filtering.for
> the signal. My opinion is that we should stick with
> the existing definition of PIE-D due to it's
> duration and extent of usage, and leave any benefit
> beyond that a receiver implementation choice.
> c.. Reference results
> a.. Reference eye patterns and reference
> penalty CDFs are provided for comparison to previous
> MATLAB code results.
> c.. ACTIONS - new
> a.. ClariPhy to test sensitivity of filter
> configurations with 47.1 psec Gaussian pulse shape
> b.. Update a per fiber comparison with PIE-D
> for both filter configurations using 47.1 psec
> waveform
> c.. Pattern definition
> a.. Little progress since last call. Actions can
> be found in previous meeting notes.
> d.. Waveforms & penalty plots
> a.. Not discussed, but more waveforms from more
> companies are desired to scope the pass/fail
> requirements for TP2.
> e.. D1.0 comments
> a.. Nick asked if we could pre-resolve some
> comments relating to TP2.
> b.. The comment list is in the agenda. All
> comments were discussed.
> c.. A separate email will attempt to capture
> progress.
>
> Next call
> a.. Date: Thurs, 1/20/05 (regular day/time)
> b.. Time: 9:00 AM Pacific
> c.. Duration: 1:30 max
> d.. Number: 401-694-1515
> e.. Access code: 421721#
>
> ----- Original Message -----
> From: Tom Lindsay
> To: STDS-802-3-10GMMF@LISTSERV.IEEE.ORG
> Sent: Wednesday, January 12, 2005 7:18 PM
> Subject: [10GMMF] Reminder for TP2 call 1/13/05
>
>
> All -
>
> Next call
> a.. Date: Thurs, 1/13/05 (regular day/time)
> b.. Time: 9:00 AM Pacific
> c.. Duration: 1:30 max
> d.. Number: 401-694-1515
> e.. Access code: 421721#
>
> Agenda
> a.. Attendance
> b.. Agenda
> c.. Approve old minutes
> d.. Progress on tasks and distribution of work
> (see within previous minutes, below)
> a.. Progress on TP2 test methodology and code
> development
> a.. Document & code status
> b.. Comparisons to PIE-D
> c.. Filter configurations - results from
> ClariPhy and/or Lew?
> b.. Test patterns - any progress?
> c.. Nick has asked if we can pre-resolve TP2
> comments
> a.. Easy? - 49,50,81,83,104,105,106,109,111
> b.. Less easy? - 107,108,110
> d.. Other?
> e.. Plans for next call (1/20/05)
> Tom
>
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