Antonio_Magma
Full Member level 2
I have some questions regarding implementing OFDM in Simulink...
I'm using BPSK, thus my output after BPSK would be a complex number. I've splited up the real (16 samples) and imag (16 samples) numbers into 2 matrices.
I plan to use IFFT with 64 samples. Except for the DC (sample 1), Nyquist center frequency (sample 32) and the real (13~31) and imag (33~48) samples at both sides of the Nyquist center, i want to pad it with zeros.
However, the zero pad block only allows me to pad either from the beginning or from the end.
How do i pad between selected rows, ie rows 2~12 and 49~64?
This is the image of my OFDM transmitter in Simulink
[img=http://img72.imageshack.us/img72/4289/p0io.th.jpg]
I'm using BPSK, thus my output after BPSK would be a complex number. I've splited up the real (16 samples) and imag (16 samples) numbers into 2 matrices.
I plan to use IFFT with 64 samples. Except for the DC (sample 1), Nyquist center frequency (sample 32) and the real (13~31) and imag (33~48) samples at both sides of the Nyquist center, i want to pad it with zeros.
However, the zero pad block only allows me to pad either from the beginning or from the end.
How do i pad between selected rows, ie rows 2~12 and 49~64?
This is the image of my OFDM transmitter in Simulink
[img=http://img72.imageshack.us/img72/4289/p0io.th.jpg]