QAM调制与解调的仿真，比较完善，有注释。适合初学者参考。-QAM modulation and demodulation of the simulation, more perfect, there are comments. Suitable for beginners reference.

M-QAM调制在Rayleigh衰落信道中的平均误码率性能研究-Performance of the average error rate channel M-QAM modulation in Rayleigh fading