高斯信道中的ofdm仿真程序，分别采用bpsk，qpsk，16qam，64qam调制-Gaussian Channel ofdm simulation program, were used bpsk, qpsk, 16qam. 64qam modulation

16QAM的调制与解调（这里使用的是软判决）-16QAM modulation and demodulation (in this case using a soft decision)