：tcomport组件2.01版本的Delphi 2_5提供串行COM端口I /…

多径信道下的ofdm仿真系统，包括编码，映射，交织，调制。信道估计采用判决反馈方法。-multi-path channel under the ofdm simulation system, including coding, mapping, interleaving, modulation. Channel estimated that the decision feedback methods.

关于linux ipc进程间通信自己的收录的一些代码. 进程间通信（IPC，InterProcess Communication）是指在不同进程之间传播或交换信息。 IPC的方式通常有管道（包括无名管道和命名管道）、消息队列、信号量、共享存储、Socket、Streams等。其中 Socket和Streams支持不同主机上的两个进程IPC。

具有类似ＱＱ程序的功能，是学习ＶＢ网络编程的好例子，界面漂亮-similar procedures QQ functions, is learning network programming in VB good example of beautiful interface

Fundamental concepts of network Simulator-2

虽然Windows下可视化开发工具如VC、Delphi、C＋＋ Builder等都有专用的定时器控件Timer，而且使用很方便，可以实现一定的定时功能，但最小计时精度仅为55ms，且定时器消息在多任务操作系统中的优先级很低，不能得到及时响应，往往不能满足实时控制环境下的应用。不过Microsoft公司在Win32 API函数库中已经为用户提供了一组用于高精度计时的底层函数，如果用户使用得当，计时精度可到1ms。这个计时精度、对于一般的实时系统控制完全可以满足要求。现将由C＋＋ Builder 4.0提供的重新封装后的一组与时间相关的主要接口函数（函数名、参数、功能与Win32 API基本相同）说明如下： -visual development tools such as Visual C++, Delphi, C++ Builder and others all have dedicated Timer timer control, but it is convenient. can achieve a timing function, but only the minimum time of 55 ms accuracy. Timer news and multi-task operating system in the low priority that is not to respond in a timely manner, often fail to meet the real-time control environment applications. However, Microsoft Corporation in the Win32 API function has been to provide the user with a group for high-precision the bottom was a time function, if the user is properly utilized, time accuracy can be a ms. Accuracy this time, and for most of the real-time control system can meet the requirements.

Delphi环境下用MSComm控件进行串口编程，已在Delphi6.0下编译通过。-Delphi environment using MSComm controls serial programming, has been compiled through under Delphi6.0.

a code to transfer images using bluetooth

一个即时通讯的服务端的源代码。 建立一个即时通讯的服务器。-Instant messaging services to a client

Email Sender 发送Email很方便 应用SMTP协议-It s very convenient to send email use Email Sender,which apply SMTP protocol

基于低速链路的IP/UDP/RTP报头压缩协议。-This document describes a method for compressing the headers of IP/UDP/RTP datagrams to reduce overhead on low-speed serial links.