中文说明：
通过具体的信道实例对比几种信道容量，绘出对数正态衰落、瑞利衰落、Nakagami衰落下确定的容量随平均接收信噪比变化的曲线。
English Description：
By comparing several kinds of channel capacity through specific channel examples, the curve of the capacity determined under lognormal fading, Rayleigh fading and Nakagami Fading with the average received signal-to-noise ratio is drawn.