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Research on mobile ip in ip-RAN

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The Journal of China Universities of Posts and Telecommunications 2004年第1期11卷 68-72页

作者： JIANGChun-bo QIANGGuo-liang XUDa-xiong School of Electronic Engineering Beijing University of Posts and TelecommunicationsBeijing100876P.R.China China Putian Institute of Technology Beijing100053P.R.China

ip-RAN is a part of ALL-ip UMTS. One of the most important functions in RAN is Mobility Management (MM). In ip-RAN, traditional MM technology that is based on ATM is deficient. Based on the analysis of requirement of MM in ip-RAN, a new architecture based on mobile ip and MPLS is proposed to provide an efficient MM with QOS support. In this paper, the signal process and data process of this architecture are specified. And at the end of this paper, the benefits of this architecture are also presented. Because the architecture is based on some assumptions, the actual application of the architecture needs some optimization that is another subject of our further research.

关键词： mobile ip MPLS ip-RAN, LSP

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AAA下mobile ip的认证及注册

AAA下Mobile IP的认证及注册

作者：李兴华西安电子科技大学

学位级别：硕士

在当今社会中，移动通信迅速发展。移动设备在尺寸、重量和复杂程度上的巨大改进和发展;对计算机网络，尤其是Internet上信息的依赖性的持续增长;远程办公和移动办公人员数量的增加，这些都是移动计算和连网技术标准创立的推动力量。现... 详细信息

在当今社会中，移动通信迅速发展。移动设备在尺寸、重量和复杂程度上的巨大改进和发展;对计算机网络，尤其是Internet上信息的依赖性的持续增长;远程办公和移动办公人员数量的增加，这些都是移动计算和连网技术标准创立的推动力量。现在出现了许多的移动设备，如手机、PDA、笔记本电脑等等。这些移动设备的用户要求随时随地的访问网络来获得所需的信息。因此，我们现在使用的通信协议就必须适应移动通信的需求。随着移动通信需求的增长，ip协议族也应适应移动通信的要求。mobile ip工作组于1996年6月由因特网工程指导组IESG（Internet Engineering Steering Group）通过，并于1996年11月公布为建议标准。移动ip是一种在全球Internet上提供移动功能的方案，它具有可扩展性、可靠性、安全性，并使节点在切换链路时仍可保持正在进行的通信。它提供了一种ip路由机制，使移动节点可以以一个永久的ip地址连接到任何链路上。当MN从它所属的网络中移动到其它的网络中的时候，这些网络需要对MN进行认证（Authentication）和授权（Authorization），并进行记账（Accounting）。在这些网络中的移动就产生了AAA协议的要求。而AAA协议和其基础设施一旦出现，将会对mobile ip的部署提供一个经济上的推动作用。所以很有必要将mobile ip和AAA相结合。IETF也成立了专门的AAA工作组来研究认证、授权和记帐问题，并于2000年颁布了RFC 2977来解决AAA和mobile ip相结合的问题。在本文中，我们主要关注mobile ip安全方面的认证问题，最后提出了AAA下mobile ip认证的三个方案，并对每个方案的效率和安全性作了详细地分析。

关键词： mobile ip AAA 认证注册

分布式mobile ip与MPLS集成方案研究

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分布式Mobile IP与MPLS集成方案研究

作者：李胜利天津大学

学位级别：硕士

现有的“mobile ip分布式路由方案”减少了mobile ip网络中的远程信令流量,但是分布式代理——RA和LA使数据包处理复杂化,增加了数据包的延时,为了去除这些负面影响,本文引入MPLS交换机制,设计一种“分布式mobile ip与MPLS集成方案”,... 详细信息

现有的“mobile ip分布式路由方案”减少了mobile ip网络中的远程信令流量,但是分布式代理——RA和LA使数据包处理复杂化,增加了数据包的延时,为了去除这些负面影响,本文引入MPLS交换机制,设计一种“分布式mobile ip与MPLS集成方案”,在保留分布式mobile ip路由方案优势的基础上,去除其劣势。本文提出了“LSP局部重新配置”方法。当MN切换局部代理时,LSP需要变换,使用“LSP局部重配置”方法将LSP的出口改变为新的局部代理出口,从而避免了LSP的重新建立、切换以及销毁的过程。在集成方案中,只有MN和CN之间的通信数据经过LSP进行传输,而信令消息通过ip路由传输,当没有数据传输时,MN和CN之间并不建立LSP,这样就提高了LSP的利用率,减轻了路由器的负载。数据通过LSP进行传输时使用MPLS封装代替ip in ip封装,减小数据包的包头开销。通过对分布式mobile ip与MPLS集成方案进行仿真,表明本方案具备如下优点:(1)与mobile ip分布式路由方案和mobile ip与MPLS简单集成方案相比,网络吞吐率明显提高;(2)与mobile ip与MPLS简单集成方案相比,MN切换代理时重新注册时间显著减少;(3)与mobile ip与MPLS简单集成方案相比,MN在移动过程中,LSP的重新建立和切换次数显著减少;(4)与mobileip与MPLS简单集成方案相比,使用TCP连接传输的数据中的乱序包和重传包显著减少。

关键词： mobile ip MPLS 分布式路由 LSP

基于MPLS的mobile ip技术的分析

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基于MPLS的Mobile IP技术的分析

mobile Sip与mobile ip的比较

四川省通信学会2012年学术年会

作者：黄亮陈金鹰成都理工大学信息科学与技术学院

在阐述MPLS和mobile ip技术原理的基础上,对MPLS技术与mobile ip技术的结合进行了分析,MPLS把mobile ip的数据传输方式从路由替换为标签交换,很大程度上地解决了三角路由问题,实现流量工程、提供了QoS和CoS,实现了网络资源的合理分配和... 详细信息

在阐述MPLS和mobile ip技术原理的基础上,对MPLS技术与mobile ip技术的结合进行了分析,MPLS把mobile ip的数据传输方式从路由替换为标签交换,很大程度上地解决了三角路由问题,实现流量工程、提供了QoS和CoS,实现了网络资源的合理分配和优化。最后讨论了MPLS的在宽带移动通信中的应用。

关键词： MPLS mobile ip LSP CoA

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Mobile SIP与Mobile IP的比较

2003年中国通信学会信息通信网络技术年会

作者：焦燕鸿侯自强张宇哈尔滨工程大学中国科学院声学研究所DSP中心

介绍了目前广泛研究的实现方案mobile ip以及更适用于多媒体通信的实现方案——基于 Sip协议的移动性方案,并对两类实现方案进行了分析比较．最后在此基础上提出一种符合下一代网络设计思想的移动Internet解决方案．

关键词： Sip mobile ip 移动管理

来源： cnki会议评论

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mobile ip指引无线网络

中国经济和信息化 1998年第2期 41-41页

作者：曾文

计算机产业的两个趋势越来越明显,一是Internet的发展,二是移动式计算机的运用越来越广泛,人们需要访问基于ip的网络,包括Internet和Intranet。Internet的新标准mobile ip(移动ip)将用来提供移动计算机的无缝连接,支持任何有线及无线的... 详细信息

计算机产业的两个趋势越来越明显,一是Internet的发展,二是移动式计算机的运用越来越广泛,人们需要访问基于ip的网络,包括Internet和Intranet。Internet的新标准mobile ip(移动ip)将用来提供移动计算机的无缝连接,支持任何有线及无线的基础媒介层。 Internet路由器使用分布路由表,可以发送基于ip地址的ip数据包,其中一部分指定目标计算机的子网。这种传统方案妨碍了具有固定ip地址的计算机同其它子网的连接。简单的解决方法是不使用固定ip地址,而通过

关键词： mobile ip 结点奇点公用网络外部网络子网

An Approach to Support ip Multicasting in Networkswith mobile Hosts

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Journal of Computer Science & Technology 1999年第6期14卷 529-538页

作者：彭伟卢锡城 DepartmentofComputerScience ChangshaInstituteofTechnologyChangsha410073PR.China DepartmentofCompute

it is an efficient way for a mobile host to obtain multicast servicevia a local multicast router on the visited network. However, there is a possibilityfor a temporary disruption of multicast service due to the join latency and otherissues in handoff procedure. This paper proposes a scheme to solve such a problem.A smooth handoff mechanism is introduced to avoid unnecessary data loss. Besides,any mobility agent capable of multicast can be appointed to provide service to mobile hosts, which makes it possible to deploy the protocol widely. Discrete-eventsimulations were conducted to survey the performance of the proposed scheme. Thesimulation results show that the scheme has better performance than the comparedapproaches.

关键词： ip multicast mobile ip hand off mobility agent

An improved network layer protocol based on mobile ipv6

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Journal of Central South University 2001年第4期8卷 263-267页

作者： WANG Jian xin 1,HUANG Guo sheng 2,CHEN Song qiao 1,CHEN Jian er 1 (1.College of Information Science and Engineering, Central South University, Changsha 410083, China 2.Department of Physics and Electronic Engineering, Jishou University, Jisho College of Information Science and Engineering Central South University Changsha China Department of Physics and Electronic Engineering Jishou University Jishou China

The mobile ipv6 proposed by the IETF aims at providing mobility support on the next generation Internet. First, the authors described the basic principle of mobile ipv6 in brief and analyzed the advantages and disadvantages of it, presented a new idea of allocating a specific address space for mobile node (MN) and developed a new extension header and two ICMP message types for mobile ipv6. Lastly the authors proposed an optimization strategy for mobile ipv6 based on these extensions of protocol, which has the following advantages: 1) It is more convenient to manage the MNs because MN can be judged from its ip address; 2) When the correspondent node (CN) is not actively communicating with a MN, the MN and its home agent (HA) need not send Binding Update to the CN, and the CN need not send Binding Request to the MN. Only when the CN really wants to send a packet to the MN, will the CN voluntarily send a MN Discovery Request message to acquire the MN′s care of address. In this way,the transmission of Binding Update and Binding Request is greatly reduced, consequently the network overhead is also decreased; 3) While sending packets, the CN simply uses a MN Home Address Extension Header without using ipinip encapsulation and routing header, which can reduce the redundant information in the packet and the message delay; 4) All the packets sent by the CN can be directly routed to the MN and the triangle routing can be completely avoided. By using these protocol extensions, the overhead of the network is greatly reduced and the network quality of services (QoS) is improved.

关键词： mobile ip home agent mobile node care of address binding

ip Mobility Issues for a mobile Tele-Robotic System-NEPWAK

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International Journal of Automation and computing 2004年第1期1卷 10-16页

作者： Alexander Ferworn Ankit Arora Muhammad Jaseemuddin Network-Centric Applied Research Team Ryerson University CanadaNetwork-Centric Applied Research Team Ryerson University CanadaNetwork-Centric Applied Research Team Ryerson University Canada

The network-centric applied research team (N-CART) is continuing its work on an ambitious project known as the network-enabled powered wheelchair adaptor kit (NEPWAK). It introduces techniques for modifying and using powered wheelchairs as mobile platforms enabling communication and remote control. The wheelchair is equipped with a laptop computer, a CCD camera and a wireless network interface card (NIC) for 802.11b Internet access. The laptop acts as a server allowing network clients to gain access through a custom control interface on the chair. The remote controlling client receives a video and audio feed from the chair and sends control signals for maneuvering. While traveling, the chair is able to change its network association from one access point (AP) to another within the same subnet-the process is known as handoff. However, there is no inter-network handoff mechanism presently available in ip networks. This restricts the mobility of the wheelchair to within the coverage area of the subnet APs. This paper shows that the Internet engineering task force’s (IETF) network layer mobility protocol—mobile ip suffers from large handoff latencies that can hinder communication between the client and the wheelchair during handoff. mobile ip alone is not a sufficient solution for a mobile telebotic system such as NEPWAK. An interesting solution to the handoff latency problem comes from the Fast-handover protocol described in Section 4.4 with simulation results in Section 6.2.

关键词： Telebot wheelchair 802.11 Wi-Fi handoff mobile ip fast handover