Re: [STDS-802-3-EPOC] Any presentations for Wednesday's scheduled PHY Sub-Group Conference Call?
Ed,
In all honesty, I look at your presentation and I am getting really lost in
all options and conclusions being drawn. Is it just me, or we are just
overdoing it on the side of options and optimizations? What's wrong with
picking just medium FEC codeword and allowing for codeword truncation at
the end? The decoding process should be fairly easy, since it would be
driven by either full FEC codeword or end of burst marker sequence. It does
not seem to affect negatively SNR and decoder latency and at the same time
we avoid all the complexity of options, filling algorithms and assumptions
that the CLT has to make to calculate the size of the grant to accommodate
reported data.
I feel that we are driven to decide based only on the very noble, but yet
completely impractical notion of very high efficiency. Ethernet has been
always about low cost and robustness and not perfect efficiency. I
understand the need to use the spectrum resource efficiently, but after a
certain efficiency point, cramming more bits into the channel incrementally
increases the overall system cost, its complexity and decreases its
robustness.
My suggestion is therefore simple: pick medium FEC codeword we have defined
right now, allow for codeword truncation and move on.
Regards
Marek
On 28 January 2014 17:51, Ed Boyd <ed_boyd@xxxxxxxxx> wrote:
> Hi Mark,
>
> I would like to discuss the attached presentation and get feedback
> tomorrow if possible. I tried to expand on the comments from the FEC
> filling algorithm discussion at the meeting.
>
> Thanks,
> Ed…
>
> Sent from Windows Mail
>
> *From:* Mark Laubach <laubach@xxxxxxxxxxxx>
> *Sent:* Monday, January 27, 2014 4:19 PM
> *To:* STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
>
> Dear IEEE P802.3bn Task Force Participants,
>
>
>
> Our scheduled PHY sub-group conference call is this Wednesday at 10AM
> Pacific.
>
>
>
> If you have any presentations for socialization or other topics, please
> send them on the reflector by 5PM Pacific tomorrow (Tuesday).
>
>
>
> Please be familiar with the IEEE SA Patent Policies at:
>
>
> https://development.standards.ieee.org/myproject/Public/mytools/mob/slideset.pdf
>
>
>
> WebEx Meeting Number: 920 271 005
>
> To start: https://broadcom.webex.com/broadcom/j.php?J=920271005
>
>
>
> Yours truly,
>
> Mark Laubach, Chair
>
> IEEE P802.3bn EPoC PHY Task Force
>
>
>
> Broadband Communications Group
>
> Broadcom Corporation
>
> 1351 Redwood Way
>
> Petaluma, CA, 94954
>
> [image: broadcom.jpg]
>
> Tel: +1.707.792.9093
>
> Cell: +1.650.996.2219
>
>
>
> ------------------------------
>
>
> ------------------------------
>
>
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