P2P即时通信系统关键技术研究及应用  

Analysis and Application of Key Technologies Based on P2P Instant Messaging System

作　　者：徐文莉[1] 熊燕[1] 李燕[1] 

机构地区：[1]武昌理工学院信息工程学院,湖北武汉430223

出　　处：《软件导刊》2017年第9期151-153,157,共4页Software Guide

摘　　要：P2P技术因其非中心化、身份对等、可扩展性等优势,在即时通信领域受到重视。基于P2P的即时通信系统,广泛应用于个人通信、商务洽谈、企业管理等领域。为完善系统功能,提高开发效率,对在.NET平台下建立完全对等的P2P拓扑结构,实现局域网通信关键技术及应用方式进行了研究。利用PNRP协议编程实现了对等节点的发现,通过对DirectShow的封装高效完成了音视频数据的采集与压缩,在TCP/UDP协议及多线程技术支持下实现了数据有效传输。实际应用表明,系统架构设计合理,关键技术应用可行。Due to its advantages of non-centrality, identity equivalence, scalability, P2P technology has gradually attracted more attention in the field of instant messaging. Instant messaging system has been widely applied in certain areas based on P2P tech- ished as well. In the end, data effective transmission is solved with the support of TCP/UDP protocol and multithread technology. It can be proved that system＇s architecture is reasonable, and the application of key technology is feasible and effective.

关 键 词：即时通信 对等网络 TCP/UDP PNRP DIRECTSHOW 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]