Representation of BER

[Anamika BasnotraParticipant]

Hello everyone
can anyone plz tell me how can i represent BER in some other form (without exponents)
earlier i was representing it in the form of -ve log of BER
Bt since some of the BER values came 0; so they cannot be represented in -ve log form.
it is important to convert these for plotting them.

[Ashu vermaParticipant]

Hi Anamika ,you can find no of ways to calculate the BER .I have attache a link below
http://www.academia.edu/6225253/fiber_optic_communication_-_Govind_P._Agrawal_free_download_.pdf

May this will help you.

[Anamika BasnotraParticipant]

hi, Sam Sung
the problem that i am facing is not the calculation but the representation
i have already calculated the BER; now i have to plot the graphs
for that i have to change the exponential form of BER into normal form
one of the way is to convert it into negative log
But since some of the values have come 0; so they cannot be converted.
i am asking; is there any other way in which i can represent BER in normal form (without exponents)

[RavilParticipant]

Hi Anamika,

According to its definition, bit error ration (BER) is usually represented by number or err. bits to the total number of bits transmitted. Such value can be represented either in powers of e or through log in dB. I don’t think there are any other units for BER. However, BER is directly related to OSNR, which will be non-zero value (since you’ll always have noise in your channels…) Can you use it as a substitution for BER?

+2

[Alessandro FestaParticipant]

Hi Anamika, I think you can use Q-factor (in dB) instead of BER on your plots.

[Anamika BasnotraParticipant]

Hi, Ravil
even i was thiking of this substitution bt was not sure.
you cleared my doubt. thankyou

[RavilParticipant]

You are welcome, Anamika! I am glad that my suggestion helped you with your question!

[Anamika BasnotraParticipant]

hi, Alessandro
I am done with plotting the graphs for Q-Factor

[Alessandro FestaParticipant]

Hi Anamika, what do you mean with “I am done”? Is the solution of plotting Q-factor acceptable?

[Anamika BasnotraParticipant]

i mean i have plotted the graphs for Q-Factor

[Alessandro FestaParticipant]

Ok I am glad I could help!

Alessandro