一种用于实时业务的无缝切换方案

doi:10.3969/j.issn.1001-2400.2010.02.031

J4 ›› 2010, Vol. 37 ›› Issue (2): 359-365.doi: 10.3969/j.issn.1001-2400.2010.02.031

一种用于实时业务的无缝切换方案

张载龙;孙建;张顺颐;孙雁飞;李君

(南京邮电大学信息网络技术研究所，江苏南京 210003)

收稿日期:2008-10-31 出版日期:2010-04-20 发布日期:2010-06-03
通讯作者: 张载龙
作者简介:张载龙(1966-)，副研究员，南京邮电大学博士研究生，E-mail: zlzhang@njupt.edu.cn．
基金资助:
国家高技术研究发展计划“863”资助项目(2006AA01Z232, 2009AA01Z212, 200901Z202);江苏省自然科学基金资助项目(BK2007603);江苏省高技术研究计划资助项目(BG2007045);南京邮电大学攀登计划资助项目(NY2007044)

Seamless handover scheme for real time traffic

ZHANG Zai-long;SUN Jian;ZHANG Shun-yi;SUN Yan-fei;LI Jun

(Inst. of Information and Network Tech., Nanjing Univ. of Posts and Telecoms, Nanjing 210003， China)

Received:2008-10-31 Online:2010-04-20 Published:2010-06-03
Contact: ZHANG Zai-long

摘要/Abstract

摘要：

为改善实时业务无缝切换的性能，对移动IPv6(MIPv6)及其增强机制进行了研究，提出了一种集成MIPv6、快速移动IPv6(FMIPv6)、分层移动IPv6(HMIPv6)、缓存管理、链路层触发器(L2T)、双播机制的混合式无缝切换方案(IMIPv6)．简述了IMIPv6原型系统及其测试结果．用NS-2软件仿真并分析了MIPv6、FMIPv6、HMIPv6和IMIPv6的切换时延、分组丢失和切换信令负载．结果表明，IMIPv6和FMIPv6的丢包最少，IMIPv6的切换时延最低，但IMIPv6的信令负载最大．IMIPv6在切换的快速性和平滑性方面的性能优于MIPv6、FMIPv6和HMIPv6，适合用于实时业务的无缝切换．

关键词: 移动计算, IMIPv6, 无缝切换, 时延, 丢失率, 信令负载

Abstract:

To improve the handover performance of real time traffic, Mobile IPv6 (MIPv6) and its enhancement mechanisms are studied. A new hybrid seamless handover scheme called IMIPv6 (Integrated MIPv6) is proposed, which integrates MIPv6, Fast Handovers for MIPv6 (FMIPv6), Hierarchical Mobile IPv6 (HMIPv6), buffer management, Link-layer Trigger (L2T) and bi-casting mechanisms. The IMIPv6 prototype and its test results are described. The handover delay, packet loss and handover signaling load of MIPv6, FMIPv6, HMIPv6 and IMIPv6 are simulated and analyzed with NS-2. The results show that IMIPv6 and FMIPv6 have the least packet loss and that IMIPv6 has the lowest handover delay and the biggest signaling load. IMIPv6 has advantages over MIPv6, FMIPv6 and HMIPv6 in handover speediness and smoothness, and thus is suitable for seamless handover of real time traffic.

Key words: mobile computing, integrated MIPv6, seamless handover, latency, loss rate, signaling load

张载龙;孙建;张顺颐;孙雁飞;李君. 一种用于实时业务的无缝切换方案[J]. J4, 2010, 37(2): 359-365.

ZHANG Zai-long;SUN Jian;ZHANG Shun-yi;SUN Yan-fei;LI Jun. Seamless handover scheme for real time traffic[J]. J4, 2010, 37(2): 359-365.

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一种用于实时业务的无缝切换方案

Seamless handover scheme for real time traffic

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