Hello aadilqau,
in manula of OFDM demodulators, you can find the calculations and the procedures for BER and SER.
something like the following what is written below.
thanks
Mohamed Abouseif
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Decision, EVM and SER computation
Decision
The Decision block processes the I and Q channels by normalizing each channel to their respective m-PSK or m-QAM grid and performs a decision on each symbol based on normalized threshold settings.
EVM
Once the decision is made, the EVM is calculated as follows:
(5)
where S is the symbol sequence, indicates the mean value, and is the decision of S. The average EVM and EVM per subcarrier are shown in the results as well as graphed.
SER
The received signals (after decision) are compared with the originally transmitted symbols to count the symbol errors and calculate the SER
(6)
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