Re: [STDS-802-3-EPOC] Updated PMD Outline Proposal
Dear colleagues
One more thing that came to my mind when looking through the slides for
today's meeting - it is not clear to me (at least it has not been
demonstrated until now) what the relationship between the said "FEC
codeword" error ratio and the MAC error ratio really is. We have been
discussing the pros and cons of LDCP codes for EPoC, but I still have not
seen any estimates of what raw BER/FER it can work with and what output
BER/FER we will get out of it. I hope it is something that is anticipated
for July in Geneva, because it is a crucial element of the puzzle we need to
work on.
Regards
Marek
From: Marek Hajduczenia [mailto:marek.hajduczenia@xxxxxx]
Sent: Wednesday, 26 June 2013 7:02 AM
To: 'Shellhammer, Steve'; 'STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx'
Subject: RE: [STDS-802-3-EPOC] Updated PMD Outline Proposal
I like "FEC codeword" very much - there would be no terminology overlap then
at all
Marek
From: Shellhammer, Steve [mailto:sshellha@xxxxxxxxxxxxxxxx]
Sent: Tuesday, 25 June 2013 7:54 PM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-3-EPOC] Updated PMD Outline Proposal
Joe,
You may want to use the term "LDPC codeword" or "FEC
codeword." The codeword typically includes both the information bits and the
parity bits.
Steve
From: Solomon, Joe [mailto:Joe_Solomon@xxxxxxxxxxxxxxxxx]
Sent: Tuesday, June 25, 2013 9:06 AM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-3-EPOC] Updated PMD Outline Proposal
The frame we are referring to is the "LDPC frame" - the block of LDPC bits.
Maybe frame is the wrong term. It's related to the frame error rate referred
to in the project objectives, but is to specify the performance of the
receiver at the PMD layer.
We can discuss on the call tomorrow to improve the terminology.
Thanks for the question!
From: Marek Hajduczenia [mailto:marek.hajduczenia@xxxxxx]
Sent: Saturday, June 22, 2013 1:32 PM
To: Solomon, Joe; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: RE: [STDS-802-3-EPOC] Updated PMD Outline Proposal
Hi Joe,
A quick question on page 11 - you're listing here "100.2.7.2 Frame Error
Rate" and I wonder what "frame" you really mean - is this OFDM frame or
Ethernet frame? In either case, clarification is warranted, since at this
level Ethernet frames are rather hard to delineate with all the encoding on
top of them .
Marek
From: Solomon, Joe [mailto:Joe_Solomon@xxxxxxxxxxxxxxxxx]
Sent: Friday, June 21, 2013 11:46 AM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-3-EPOC] Updated PMD Outline Proposal
Team,
Please find attached an updated PMD outline; we will be reviewing this
presentation during the "pre-socialization" meeting next week (Wednesday, 10
ET).
Joe Solomon
Comcast - T & P Access Technology
303-242-7037
cid:image001.png@01CDE9BB.95EA0330
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