4-QAM,8PSK,QAM,QPSK +AWGN : Ps-Es/N0 and Pb-Eb/N0 We can plot 2 fig. to show that the 4 modulation situation-4-QAM,8PSK,QAM,QPSK +AWGN : Ps-Es/N0 and Pb-Eb/N0 We can plot 2 fig. to show that the 4 modulation situation