<span style=" font-size:10pt;font-family:sans-serif">Jon,</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">regarding the
first point, yes, glad to, in case Nasa is planning to provide any material.
In the past, when discussing about it, it was pointed out that</span>
<br><span style=" font-size:10pt;font-family:sans-serif">there is no difference
in performance between sliced or not sliced LDPC (slicing is indeed applied
at the incoming frames, the codes stay the same).</span>
<br><span style=" font-size:10pt;font-family:sans-serif">If you confirm
instead that this is the case and you want to submit new material, by all
means. In this case I expect we will need to submit a concept</span>
<br><span style=" font-size:10pt;font-family:sans-serif">paper to CESG...but
for now it's enough to know that some new work is expected.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Regarding the
second point, you may have seen the reply I already sent to Victor.</span>
<br><span style=" font-size:10pt;font-family:sans-serif">You may or may
not be aware, but this topic has been discussed very extensively in the
past, we did reach a consensus (involving C&S and RFM WGs)</span>
<br><span style=" font-size:10pt;font-family:sans-serif">about a possible
text...but then a different text was proposed last year and we are now
at a stalemate.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Massimo </span>
<br><span style=" font-size:10pt;font-family:sans-serif"><br>
<br>
---------------------------------------------------<br>
Massimo Bertinelli<br>
Communication Systems Engineer<br>
ESA/Estec<br>
<br>
Tel. +31 (0)71 5653435<br>
--------------------------------------------------</span>
<br>
<br>
<br>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
</span><span style=" font-size:9pt;font-family:sans-serif">Jon
Hamkins <Jon.Hamkins@jpl.caltech.edu></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
</span><span style=" font-size:9pt;font-family:sans-serif">Massimo.Bertinelli@esa.int,
Space Link Coding & Synchronization Working Group <sls-cc@mailman.ccsds.org></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Cc:
</span><span style=" font-size:9pt;font-family:sans-serif">Enrico.Vassallo@esa.int</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
</span><span style=" font-size:9pt;font-family:sans-serif">13/03/2019
16:40</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
</span><span style=" font-size:9pt;font-family:sans-serif">Re:
[EXTERNAL] [SLS-CC] Reconfirmation of CCSDS 130.1-G-2 TM Synchronization
and Channel Coding--Summary of Concept and Rationale. Green Book ->
DEADLINE 27 March</span>
<br>
<hr noshade>
<br>
<br>
<br><tt><span style=" font-size:10pt">I would like to request that the
Working Group include new material in <br>
the Green Book relating to sliced LDPC.<br>
<br>
Regarding the parallel implementation, I suggest we revisit the <br>
description revolving around the parallel implementation in the Green <br>
Book. Apparently we could not come to consensus on standardizing
the <br>
parallel convolutional encoder structure in the Blue Book, but in my <br>
view that should not prevent us from describing the issue in more detail
<br>
in the Green Book.<br>
<br>
----Jon<br>
<br>
On 3/13/2019 1:56 AM, Massimo.Bertinelli@esa.int wrote:<br>
> Dear WG colleagues,<br>
> <br>
> it seems it's high time to reconfirm the book in the subject (for
the <br>
> next five years).<br>
> In the past few years, a change (for a specific section, i.e. parallel
<br>
> implementation...) has been under discussion, but as of today we don't
have<br>
> an agreement for it.<br>
> Additionally, some colleagues spotted editorial mistakes in some of
the <br>
> curves (performance of punctured convolutional codes, with wrong labelling)<br>
> that can be easily fixed by the CCSDS editor.<br>
> I would like to have your view on the subject by 27 March (2 weeks
from <br>
> now).<br>
> The default option (no answer) is to reconfirm the book as is (except
<br>
> for editorial corrections).<br>
> <br>
> Best regards,<br>
> Massimo<br>
> <br>
> <br>
> ---------------------------------------------------<br>
> Massimo Bertinelli<br>
> Communication Systems Engineer<br>
> ESA/Estec<br>
> <br>
> Tel. +31 (0)71 5653435<br>
> --------------------------------------------------<br>
> <br>
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