信号调制解调源代码代码-Signal modulation demodulator source code code

I simulated the SPACE TIME BLOCK CODED system based on Alamouti scheme, where the modulation is BPSK. Now I am trying to extend that to QPSK and higher modulations. Since for SISO channels, BER curve for BPSK and QPSK is equal in AWGN and fla