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首页> 外文会议>International Symposium on Computer and Information Sciences(ISCIS 2006); 20061101-03; Istanbul(TR) >A Dynamic Service Range Management Strategy for Improving Mobile Multicast Protocol Performance
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A Dynamic Service Range Management Strategy for Improving Mobile Multicast Protocol Performance

机译：用于改善移动组播协议性能的动态服务范围管理策略

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摘要

There are many challenges when providing multicast services to mobile hosts (MHs) since host's mobility may cause tree reconstruction, non-optimal routing and the disruption of multicast services. Generally, frequent modifications to multicast tree are avoided as the expense of multicast routing inefficiency and vice versa. Two basic mechanisms, proposed by the IETF in Mobile IP to support multicasting, are two typical cases. This paper introduces a new mobile multicast approach with dynamic service range, which eliminates unnecessary tree reconstruction overhead by utilizing the state of multicast agent, and does not induce significant multicast delivery overhead at the same time. In addition, we present a previous subscription mechanism, which can resume multicast delivery quickly after a MH performs handoff. Simulation results show that the proposed protocol gets an improved performance over the existing protocols in terms of signaling overhead and delay.
机译：在向移动主机（MH）提供多播服务时，存在许多挑战，因为主机的移动性可能会导致树重构，非最佳路由以及多播服务的中断。通常，避免了对多播树的频繁修改，因为多播路由效率低下，反之亦然。 IETF在移动IP中提出的支持多播的两种基本机制是两种典型情况。本文介绍了一种具有动态服务范围的移动多播方法，该方法通过利用多播代理的状态消除了不必要的树重构开销，并且不会同时导致大量的多播传递开销。此外，我们提出了一种先前的订阅机制，该机制可以在MH执行切换后迅速恢复多播传递。仿真结果表明，所提出的协议在信令开销和延迟方面都比现有协议有更好的性能。

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