嵌入式SIP终端与注册服务器的研究与实现

发布时间：2018-06-01 03:38

本文选题：嵌入式 + SIP　；参考：《广东工业大学》2013年硕士论文

【摘要】：在21世纪这个网络信息时代,计算机网络技术的发展给新一代的网络(Next Generation Network,NGN)带来了新的发展,NGN以软件换技术为其核心技术,融合多种异构网络,构建一种可为公众提供视频、语音、数据等各种业务的新型网络。如何融合电信网络、有限电视网络和计算机网络,已经成为电信网络界的重要课题之一。目前,用于软交换的协议主要有SIP (Session Initial Protocal)协议和H.323,其中SIP协议凭借其简单易行、便于移植等特点成为软交换中的主流标准协议,也是目前软交换应用中的一个重要增长点。 SIP作为多媒体通信控制信令协议,通过各种类型的网关和网络,结合它的所有功能,将各种异构网络构造成更大的无缝通信网络。因此SIP非常适合开发远程视频监控、远程教育、远程会议等。在此应用背景下,本课题基于SIP协议,构建了SIP注册服务器和基于ARM的嵌入式SIP终端系统。本课题的主要研究工作如下： (1)论文首先介绍了课题的研究背景和意义,然后介绍了SIP协议及其应用的国内外的研究现状。在SIP协议方面,介绍了SIP的相关特征和功能以及实体,描述了SIP消息、SIP会话过程,简单分析了SIP协议栈以及SIP扩展。 (2)针对SIP注册服务器进行了设计与实现,在分析了服务器的架构基础上,提出了基于域名服务器树的分布式SIP注册服务器模型以及总体架构,给出了注册服务器的实现流程及方法。 (3)针对SIP服务器端发生的DOS洪范攻击问题,本文提出的一套基于BP神经网络的SIP洪范攻击检测方法,并对该方法进行了仿真测试,相关测试结果表明了所提的方法可以减少系统误判率,从而提高系统洪泛检测能力。 (4)嵌入式SIP终端系统的设计与实现,主要是系统软硬件平台选择和搭建、具体的SIP终端系统各个模块的设计和实现。 (5)系统测试。测试分为服务器测试和终端测试以及它们之间的联合测试。服务器端主要是通过使用不同的SIP终端产品测试服务器的注册功能,其中参与测试的终端包含本文所设计的嵌入式SIP终端和其他采用SIP协议的软电话；而终端测试,是通过连接包含本文设计的SIP服务器在内的不同的SIP服务器进行SIP各种会话功能的测试。
[Abstract]:In the 21st century, the development of computer network technology has brought a new development to the new generation of network next Generation Network (NGN). The core technology of NGN is software exchange technology, which integrates various heterogeneous networks and constructs a kind of video that can be provided to the public. Voice, data and other services of the new network. How to integrate telecommunication network, limited television network and computer network has become one of the most important topics in telecommunication network field. At present, the main protocols used in softswitch are SIP session Initial Protocal and H.323.The SIP protocol has become the mainstream standard protocol in softswitch because of its simplicity and portability, and it is also an important growth point in softswitch applications. As a multimedia communication control signaling protocol, SIP constructs various heterogeneous networks into a larger seamless communication network through various types of gateways and networks, combined with all its functions. Therefore, SIP is very suitable for the development of remote video surveillance, distance education, teleconferencing and so on. In this application background, based on the SIP protocol, the SIP register server and the embedded SIP terminal system based on ARM are constructed. The main research work of this topic is as follows: Firstly, this paper introduces the research background and significance of the project, and then introduces the research status of SIP protocol and its application at home and abroad. In the aspect of SIP protocol, this paper introduces the features, functions and entities of SIP, describes the session process of SIP message, analyzes the SIP protocol stack and SIP extension. Secondly, the design and implementation of SIP registry server are presented. Based on the analysis of the architecture of the server, the distributed SIP registration server model based on domain name server tree and its overall architecture are proposed. The realization flow and method of register server are given. 3) aiming at the problem of DOS flood attack on SIP server, this paper presents a set of SIP flood attack detection method based on BP neural network, and carries on the simulation test to this method. The test results show that the proposed method can reduce the error rate of the system and improve the flooding detection ability of the system. 4) the design and implementation of embedded SIP terminal system, mainly the choice and construction of system hardware and software platform, and the design and implementation of each module of SIP terminal system. System testing. Testing is divided into server testing and terminal testing and joint testing between them. The server is mainly through the use of different SIP terminal product test server registration function, in which the test terminal includes the embedded SIP terminal designed in this paper and other soft phone using SIP protocol, and the terminal test, SIP session functions are tested by connecting different SIP servers including the SIP server designed in this article.
【学位授予单位】：广东工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP393.04;TP368.1

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