中文说明：考虑雨衰 阴影 和多径影响，仿真效果非常好，快速扩展随机生成树算法，代码里有很完整的注释和解释，相关分析过程的matlab方法，给出接收信号眼图及系统仿真误码率。
English Description：
Considering the rain fading shadowing and multipath effects, the simulation results is very good, the rapid expansion of the random spanning tree algorithm, code is very complete annotated and explained, correlation analysis of MATLAB method are receiving eye diagram of signal and system simulation of bit error rate (BER).