本论文给出了用opnet仿真软件研究WLAN的详细过程，对于从事wlan毕业设计的同学具有很高的参考价值。-This paper gives a opnet Simulation Software WLAN detailed process, wlan engaged in the design of the students graduated with high reference value.

在matlab软件平台上，仿真通信系统中的pcm编码过程。-On matlab software platform, the simulation of communication systems pcm encoding process.