一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模 块，并统括系统性能的仿真验证了系统设计的可靠性。 -A relatively complete simulation of the OFDM communication system design, including coding, modulation, IFFT, frequency up and down, Gaussian channel

我设计的传真最早一期的完整程序，各方面都较好，也批量生产了，近期有客户反馈有一些小bug，希望能和朋友们探讨。-I designed the first one to fax a complete program, all aspects of good, but also volume, and recent customer feedback there are some small bug, and friends who want to explore. Thanks

rip仿真，可以自己设计拓扑图，经过若干次运算后输出所有路由器完整的路由表信息。-rip simulation, design topology, to output all routers in the routing table information after several operations.