基于matlab实现OFDM系统 包括信号时域频域仿真 误码率分析(Based on matlab realize simulation of OFDM system, including signal time domain and frequency domain analysis of bit error rate)

QAM星座图，误码率，高斯白噪声，这是应用OFDM中的一个模块(QAM_MODEM Matlab code is Realize QAM modulation function and QAM demodulation function code)