一种引入缓存/转发机制的快速PMIPv6切换方案  

AN FAST PMIPv6 HANDOVER SCHEME INTRODUCING CACHE /FORWARD MECHANISM

作　　者：李向丽[1] 翟苹利[1] 李林森[1] 

机构地区：[1]郑州大学信息工程学院,河南郑州450001

出　　处：《计算机应用与软件》2014年第2期123-125,共3页Computer Applications and Software

摘　　要：FPMIPv6是PMIPv6(Proxy Mobile IPv6)标准协议的扩展,旨在减少切换时间延迟,然而在实际情况中移动节点MN并非每次都能对新接入点预测正确,这种情况会带来更长的时间延迟和大量数据包的丢失。考虑到MN切换发起错误的情况,提出一种改进的FPMIPv6方案,通过采用"切换发起和代理绑定更新并行"和"缓存与转发并行"的思想降低切换时延和数据包丢失来降低切换过程的总开销。仿真数据表明,改进方案的切换开销明显小于PMIPv6协议和FPMIPv6协议的开销。FPMIPv6 is the extension of standard PMIPv6,which aims at reducing the handover time latency.While in practical applications,the moving nodes MN can not exactly predict the new access points by every time and such situations result in a longer latency time as well as more packets loss.Therefore we propose an enhanced FPMIPv6 scheme by taking the false initialisation of MN handover into consideration.The total cost of handover process is lowered by reducing the handover latency time and data packets loss using the ideas of“parallelising the update of handover initialisation and proxy binding”and “parallelising cache and forwarding”.Simulation data show that this enhanced scheme is much better than PMIPv6 and FPMIPv6 in terms of handover cost.

关 键 词：代理移动IPV6 快速切换 切换发起错误 缓存 切换总开销 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]