Re: [STDS-802-3-400G] 答复: [STDS-802-3-400G] Reed-Solomon settings

["Ing. Tomas Pajda" <ing.tomas.pajda@xxxxxxxxx>]

Hello, I would like to provide you with my way of thiking about cooperation of FEC and modulation. Please find attached my article.

2015-11-20 2:10 GMT+01:00 Wangxinyuan <wangxinyuan@xxxxxxxxxx>:

Hi Tomas,

Just for reference, the following link is discussion of RS FEC in 802.3bs project:
http://www.ieee802.org/3/bs/public/15_01/wang_x_3bs_01a_0115.pdf

In March meeting, KP4 FEC is accepted per Slide #2:
http://www.ieee802.org/3/bs/public/15_03/motions_3bs_01_0315.pdf

Regards!
Xinyuan

-----邮件原件-----
发件人: Ing. Tomas Pajda, CCNA [mailto:ing.tomas.pajda@xxxxxxxxx]
发送时间: 2015年11月20日 2:58
收件人: STDS-802-3-400G@xxxxxxxxxxxxxxxxx
主题: [STDS-802-3-400G] Reed-Solomon settings

Hello, I would like to suggest one technical proposal to the standard. If we use more redundancy bits of Reed-Solomon FEC on the physical layer and at the same time put more symbols that are making a codeword from RS encoder to the modulator, which will transform the codeword into the modulation symbols alphabet, we can get higher transmission speed, because even if more errors occure during the transmission, we will be able to correct them using FEC more redundancy bits. So the good settings of the cooperation between the FEC and modulation can increase the transmission speed, even in longer distance. I suggest consideration.

Ing. Tomas Pajda, CCNA,
IEEE#93177474

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