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Hello
I am using this examples: WARPLab 7 Example: SISO OFDM
1 I want to know the number of symbols of OFDM, the impact on the data sent.
2 I want to select good quality subcarriers to transmit data according to CSI information. For subcarriers with poor channel quality, do not transmit data. Which part do I need to modify the program?
3 I want to send data at different powers for each subcarrier. Can it be achieved?
If you can solve my problem, I will especially thank you!
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1 I want to know the number of symbols of OFDM, the impact on the data sent.
The number of OFDM symbols is controlled by the N_OFDM_SYMS variable. The total number of data bits depends on the number of OFDM symbols and the selected modulation rate (MOD_ORDER variable).
2 I want to select good quality subcarriers to transmit data according to CSI information. For subcarriers with poor channel quality, do not transmit data. Which part do I need to modify the program?
3 I want to send data at different powers for each subcarrier. Can it be achieved?
Both are possible. I cannot tell you exactly how to implement these changes as I have never tried them. You will need to study the OFDM M code and experiment with your customizations. I strongly encourage you to work with the script in simulation (USE_WARPLAB_TXRX = 0) and be sure your custom code is working as expected before testing with hardware.
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Thank you very much, this is very helpful to me!
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