无论是那种编码方式，在AWGN信道中的性能都明显由于在瑞利衰减信道中的性能。这一点也符合实际。毕竟AWGN信道是瑞利衰减信道的特殊情况。除此之外，在研究单一编码方式误码率时，样本帧数越大，则得到的误码率曲线就越平滑，较少出现较明显的凸起。(Either way, the performance in AWGN channel is obviously due to the performance in Rayleigh attenuation channel. This is also in line with reality. After all, AWGN channel is a special case of Rayleigh attenuation channel. In addition, the larger the number of sample frames, the smoother the BER curve will be, and less prominence will appear when studying the BER of a single encoding mode.)