这是一份介绍SIP协议的PPT，详细介绍了SIP协议，可以帮助SIP开发人员理解SIP协议各个消息中的头域，以及应用流程。...

硕士学位论文:LDPC码在瑞利衰落信道中的性能分析 信道编码技术可以带来编码增益，节省宝贵的功率资源，己经成为现代数字 通信系统中必不可少的关键技术。LDPC码采用低复杂度的迭代译码算法，且具有 逼近香农限的性能.由于LDPC码具有诸多优点，它在信息可靠传输中的良好应 用前景己经引起学术界和rr业界的高度重视，成为当今信道编码领域最受瞩目的 研究热点之一。 本文主要探讨了LDPC码在瑞利衰落信道中的性能，基于LDPC码的分组空 时码系统，以及基于LDPC码的正交频分复用系统.-master"s degree thesis : LDPC codes in Rayleigh fading channels Performance Analysis channel coding technology can bring coding gain, Power saving valuable resources have become modern digital communication systems essential to the critical technologies. LDPC low complexity of the iterative decoding algorithm, having approximation Shannon limit performance. Because LDPC has many advantages, It reliable transmission of information in the application of good prospects has been caused rr academia and industry are taking, become the channel coding areas of the most watched one of the hot spots. This paper mainly discusses the LDPC Rayleigh fading channels in the performance Based on LDPC a space-time coding system, and based on LDPC

一个ppp协议实现--A ppp protocol realization

c++实现ICOP网络通讯功能，经过测试OK IOCP全称I/O Completion Port，中文译为I/O完成端口。IOCP 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

Error Control and Concealment for Video Communication 一篇很好的论文 视频通讯过程中的错误控制和错误隐藏-Error Control and Concealment for Video Co. mmunication a good thesis Video Communication errors in the process control and error concealment

这个是一个 火车票的 实时操作小软件，希望大家可以下载下来看看 -This is a real-time operation of small-ticket software, hope that we can download them to see

这是用BCB 编写的HID测试程序，自动检测HID设备-It is written with the BCB test program HID, HID auto-detection equipment

基于CSerialPort类，增加了RecvBlock方法，一次性读取多个字节，并且改进了无法正常退出的bug。原说明：This class can read, write and watch one serial port.It sends messages to its owner when something happends on the portThe class creates a thread for reading and writing so the mainprogram is not blocked.

RDA1846 SCH+ pic18f2552 USB电路原理图。有用和最适合于使用RDA1846和pic18f2552收发器。很简单的设计和构造。

C++ Primer中文版及题解,一本学习C++的好书.-C Primer and that the Chinese version of Solutions, a learning C books.

中国移动最新短信网关CMPP3.0的接口使用范例，SP开发必须-China Mobile, the latest message CMPP3.0 Gateway Interface using examples, SP development must