Mobility management for VoIP service: Mobile IP vs. SIP

Mobility management for VoIP service: Mobile IP vs. SIP
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DOI：
10.1109/mwc.2002.1043856
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发表时间：
2002-10
期刊：
IEEE Wirel. Commun.
影响因子：
--
通讯作者：
T. Kwon;M. Gerla;Sajal K. Das;S. Das
T. Kwon;M. Gerla;Sajal K. Das;S. Das
中科院分区：
其他
文献类型：
--
作者：
T. Kwon;M. Gerla;Sajal K. Das;S. Das

文献摘要

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随着无线/移动通信和网络的普及，无线互联网接入得到了极大的关注。IP语音业务很可能在基于IP的互联网和移动蜂窝网络的融合中发挥关键作用。我们从VoIP服务的角度探讨了不同的移动性管理方案，重点讨论了移动IP和会话发起协议。在说明了这两种协议针对不同移动性管理情况下的信令消息流之后，我们提出了影子注册的概念来降低移动环境中VoIP服务的域间切换(宏移动性)延迟。我们还对与移动IP和基于SIP的解决方案相关的信令消息交换的延迟和中断时间进行了分析计算和比较。
Wireless Internet access has gained significant attention as wireless/mobile communications and networking become widespread. The voice over IP service is likely to play a key role in the convergence of IP-based Internet and mobile cellular networks. We explore different mobility management schemes from the perspective of VoIP services, with a focus on Mobile IP and session initiation protocol. After illustrating the signaling message flows in these two protocols for diverse cases of mobility management, we propose a shadow registration concept to reduce the interdomain handoff (macro-mobility) delay in the VoIP service in mobile environments. We also analytically compute and compare the delay and disruption time for exchanging signaling messages associated with the Mobile IP and SIP-based solutions.