产生单极性信号，加高斯白噪声，研究误码率和信噪比的关系-Have a unipolar signal, plus Gaussian white noise to study the error rate and the relationship between SNR

QPSK仿真程序，包括调制解调，加高斯白噪声的-QPSK simulation program, including the modem, add Gaussian white noise

WiFi情况下，第一类HARQ协议仿真，采用了汉明码和CRC校验，加高斯白噪声，研究吞吐量，平均重传等-WiFi case, the first class of the HARQ protocol simulation, using the Hamming code and CRC check, add white Gaussian noise to study the throughput, average retransmission

可见光通信经典的dco ofdm 和aco ofdm，加高斯白噪声信道，可以使用的。(The classic DCO OFDM and ACO OFDM in visible light communication, with Gaussian white noise channel, can be used.)