文献M.R.Avenid, H. H. Nguyen, Differential Dual-Hop Relaying over Time-Varying Rayleigh-Fading Channels, IEEE Canadian Workshop on Information Theory, Toronto, 2013.的仿真程序，国外学者编写的，可参考学习。-Simulation of the following paper: M.R.Avenid, H. H. Nguyen,