文档介绍：西安电子科技大学
硕士学位论文
移动IPv6切换技术研究
姓名:孙金霞
申请学位级别:硕士
专业:通信与信息系统
指导教师:孙献璞
20100101
摘要
近年来,随着和移动通信的飞速发展,移动环境下的实时业务越来越
多。移动 IPv6 以其移动性和丰富的地址资源使得移动通信与有了更好的
技术融合的趋势,具有非常诱人的应用前景。但是,切换作为影响移动网络性能
的一个重要因素必须得到完善的讨论和解决。
IETF 工作组提供了一些在 IPv6 网络中进行移动性管理的方案,各国的研究学
者也提出了多种切换方案,每种方案都有各自的优缺点。本文分析了标准的移动
IPv6 切换协议、移动 IPv6 快速切换机制和“LUP”切换方案。在“LUP”切换方
案的基础上,给出了一种改进的移动 IPv6 的快速切换方案。该切换方案既继承了
“LUP”切换方案优化移动检测过程、加速重复地址检测过程和使用双向隧道减少
通信中断的优点,又对“LUP”切换方案中交换的消息格式和切换流程进行了改进,
加速了切换过程。
经过仿真验证,改进的快速切换方案与“LUP”切换方案相比,减少了切换时
延和切换丢包率,提高了切换性能,是一种有效可行的切换方案。

关键词: 移动 IPv6 快速切换时延
Abstract
In recent years, with the rapid development of and the mobile
communications, there arise more and more transactions under mobile circumstances.
Due to good mobility support and abundant addresses, Mobile IPv6 brings out a
perspective of the integration between munication and . But
handover as a key factor that impacts the performances of the works greatly,
must be well discussed and designed.
IETF has provided several mobile management schemes in works, and
researchers in different countries have provided lots of handover schemes. Each one has
its own advantages and disadvantages. In this thesis, normal mobile IPv6 handover
protocol, fast handover for mobile IPv6 and “LUP” handover scheme are analyzed.
Then an improved fast handover scheme in works is given based on “LUP”
handover scheme. The improved scheme not only inherits the advantages of “LUP”
handover scheme: optimizing the mobile detection process, accelerating DAD process
and using bidirectional tunnel to shorten the time munication interruption, but
also modifies the message format and the handover process used in “LUP” handover
scheme to decrease handover delay.
The result of simulation shows that the improved scheme, which is effective and
feasible, decreases the handover delay and has a better performance than “LUP”
handover scheme.

Keywords: Mobile IPv6 fast handover delay
西安电子科技