I am working on the OFDM transmission system. A channel is given,
MR x MT; input data
MT x S, and length of a cyclic prefix (CP).
MR - received antenna,
MT- transmit antenna,
1) According to the theory, the input data is split along
S. As a result, IFFT is applied for the vectors
MT x 1 and CP is added.
How can I apply the channel matrix ( $H\cdot data$), for each vector or first the vectors are grouped and then the channel is applied?
Thank you in advance!