Suppose we are transmitting a signal $x$ in $OFDM$ with $N$ subcarriers, After performing Parallel/Serial conversion and then N-points FFT, we suppose to have signal $s = IFFT^Hx$, Then adding the Cyclic prefix $P$ will create the transmitted signal $M$ such that: $M = s + P$. Before transmitting that signal, let's use Passband with matched filter (Or rrcpulse filter) whose sampling frequency is $Fs$ and period $Ts = 1/Fs$, and carrier frequency $Fc$.
In SISO (Singl input singl output) system, it's clear that we should use matched filters with same parameters of that matched Filter which was used in transmitter side.
My question, suppose that we are using SIMO (Singl input Multi output) system, four copies of signal should be recieved with total length 4-times the transmitted signal. My question, In that case, Should we use same matched Filter parameters for the received signal of SIMO system? How should we deal with received SIMO signal? Or I think the period Ts should equal to $Ts/4$ ?? What's paramters should be changed?..