nawabumar
Junior Member level 2
Hi.
I am having problem regarding the usage of IFFT in OFDM transmitter.The transmitter should take in input symbols and modulate different subcarriers with one of these symbols.On the other hand IFFT input is these symbols(X(k)'s) but the output is x's
N-1 j2Πnk/N
x=∑ X(k)e
k=0
which from this formula are not the individually modulated sub-carriers.Cn anyone explain how IFFT is able to achieve this goal of modulation.I'm writing c code of IFFT for OFDM .How can I include the sub-carrier information in the ouput of IFFT.???
I am having problem regarding the usage of IFFT in OFDM transmitter.The transmitter should take in input symbols and modulate different subcarriers with one of these symbols.On the other hand IFFT input is these symbols(X(k)'s) but the output is x's
N-1 j2Πnk/N
x=∑ X(k)e
k=0
which from this formula are not the individually modulated sub-carriers.Cn anyone explain how IFFT is able to achieve this goal of modulation.I'm writing c code of IFFT for OFDM .How can I include the sub-carrier information in the ouput of IFFT.???