BigDogBear
Junior Member level 3
Hello, all, I just studied the OFDM, and now some confused concepts occured in my brain, so your help is warmly welcomed, thanks a lot:
1. Is IFFT itself can be treated as a modulation type in OFDM scheme?
2. For each sub-carrier, can it be "modulated" by different bit pattern? I mean, for example, for sub-carrier 1, we use BPSK; for sub-carrier 2, we use QPSK, and for sub-carrier 3, use 16QAM, .........?
Best Regards!
1. Is IFFT itself can be treated as a modulation type in OFDM scheme?
2. For each sub-carrier, can it be "modulated" by different bit pattern? I mean, for example, for sub-carrier 1, we use BPSK; for sub-carrier 2, we use QPSK, and for sub-carrier 3, use 16QAM, .........?
Best Regards!