[802.3_50G] 答复: [802.3_50G] Relating DER, BER and Q in Draft 1.2

[Yang Zhiwei <yang.zhiwei2@xxxxxxxxxx>]

Hi Vinu,

I'm not sure how the DER0 and BER values are derived for CR, but to my understanding the basic consideration should be same with other. You can refer to "ran_020415_25GE_adhoc" for DER0 calculation. and "cideciyan_02a_1111" for PreFEC BER calculation for radom error.

As to the Q=5E-5, you can get it by Q(3.8906) there Q(x) is the Q function defined in Equation 95-1 and in mathematical also 0.5*erfc(x/sqrt(2)).

Hope a some helpful for you and may be someone can provide more details for the calculation process.

Best Regards!

Yang Zhiwei

Senior SI and Architecture Engineer, ZTE

+86 18675573560

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日 期 ：2017年03月18日 06:02

主 题 ：[802.3_50G] Relating DER, BER and Q in Draft 1.2

All,

Table 136-13 has a DER value of 1E-4. 136.1         specifies BER of 2.4E-4. 136.9.4.2.3
        calculates Q for 5E-5.

Could someone please point to the contribution(s) that relate       these values?

Thanks,

Vinu