powerline communication channel

VB 通讯编程方面的例子程序： 获取主机 MAC 地址-communications VB Programming of examples : MAC address access to the mainframe

应用背景关键技术

前段时间刚刚接触VC的串行通讯，在网上找到的了SerialPort类的使用方法，不过我想将这个类做在DLL中，然后在VB中做通讯界面调用。花了几天时间终于做完了，将SerailPort类的DLL工程共享一下，-Some time ago just contact VC serial communication, the Internet found the use of the SerialPort class, but I would like to do this class in the DLL, and then in the VB to do communication interface call. Spent a few days was finally done, and will SerailPort class DLL project to share what,

一篇详细介绍高速数据调制解调技术，主要以QPSK信号为例，包括解调和定时，挺好的-A detailed introduction of high-speed data modem technology, mainly as an example QPSK signals, including demodulation and timing, very good

串口动态连接库，使用Windows API-Serial dynamic link library, the use of the Windows API

通过外部通信工具，发送短信，查看示读信息!-Through an external communication tools, send and receive text messages!

free radius编程。完成AAA的实现，包括客户端和服务器端，广泛应用于通讯，计费，鉴权领域。-Free radius code,complete realize AAA,including server and client,widely used in communication industry,billing,authentication.

认知用户的发射功率是无约束的，两个认知用户和主用户在三维空间中的相对位置是随机分布的。

利用TAPI实现delphi程序通过语音MODEM拨打一般电话的操作。程序比较简陋，希望各位不吝赐教。-use TAPI achieve delphi procedures by voice modem dial ordinary telephone operation. Humble process, I hope the wing.

c++编写的串口程序，已通过验证，使用的是Visual studio 2005！-c++ written in serial procedures have been validated using Visual studio 2005!