摘要
分析标准移动IPv6(MIPv6)快速切换机制,提出一种基于邻居信息结构的移动IPv6快速切换方案(NFMIPv6)。当MN(mobile node)从一个AP(access point)覆盖区域移出时,它进入的目标区域是有限的,且该有限目标区域可以提前预知。通过预配置和定时更新的办法使MN提前获取目标有限区域的邻居信息结构,通过NFMIPv6切换算法提供新发现的AP信息及邻居信息结构的实时更新,使移动节点在连接当前子网时就能更快速地检测到即将移动到的新的子网,切换过程缩短了转交地址唯一性验证时间和检测延迟时间。仿真研究表明,该机制不额外占用网络资源,减少了切换过程中的乒乓交换,降低了切换过程中切换延迟时间,是一种性能优越的移动IPv6快速切换机制。
By analyzing the fast handoff scheme of standard MIPv6,a proposal（NFMIPv6） for the rapid switch of MIPv6 is presented basing on the neighbor information table structure.When the MN（mobile node） is moved out from the area coved by an AP（access point）,its access target area is limited and can be predicted in advance.By means of the pre-allocation and periodic update,the MN is able to obtain the neighbour information table structure earlier from the limited target area.By AP information provided by the switching algorithm of NFMIPv6 and the real-time update of the neighbor information table,the MN can detect the new subnet where it is going to move rapidly when it is connected with the current subnet.The time for the uniqueness detection of the delivery address and the time for the delay detection can be reduced in the switching process.The stimulation research shows that this system does not occupy additional network resources but reduces the ping-pong exchange and the time for the delay of the switch in the switching process.Therefore,it is a fast handoff scheme of MIPv6 with superior performances.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2011年第4期602-606,共5页
Journal of University of Electronic Science and Technology of China
基金
国家自然科学基金(60873194)
安徽高校省级自然科学研究重点资助(KJ2009A61)
安徽省高等学校青年教师科研项目(2008jql086)
关键词
移动IPV6
邻居信息结构
快速切换
fast handover
mobile IPv6
neighbour information structure
