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arXiv 1004.0771cs.NI
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一种新的移动IP路由优化技术的性能评估

Performance evaluation of a new route optimization technique for mobile IP

Moheb R Girgis, Tarek M Mahmoud, Youssef S Takroni, Hassan S Hassan

摘要:

移动ip(mip)是允许移动节点在移动到其它网络时具有到因特网的连续网络连接性而不改变其ip地址的因特网协议。从对端节点(cn)发送到移动节点(mn)的分组首先通过移动节点的归属代理(ha),然后ha将它们隧穿到mn的外地网络。原始mip中的主要问题之一是三角形布线问题。当核心网与节点之间的间接路径比直接路径长时,会出现三角路由问题。本文提出一种新的技术来改善切换时原有的mip的性能。所提出的技术减少了在cn和mn之间传送的所有分组的延迟、分组丢失和注册时间。在这种技术中,隧道发生在分层网络中HA之上的两个级别。为了显示所提出的技术的有效性,它与原来的mip和另一种技术,用于解决相同的问题,其中隧道发生在一个层次以上的HA。本文给出的仿真结果是基于linux平台上的ns2移动软件。仿真结果表明,我们所提出的技术实现了更好的性能比别人,考虑到分组延迟,分组丢失期间的拥塞和注册时间,在不同的情况下,相对于HA和FAS的MN的位置。

英文摘要:

Mobile ip (mip) is an internet protocol that allows mobile nodes to have continuous network connectivity to the internet without changing their ip addresses while moving to other networks. The packets sent from correspondent node (cn) to a mobile node (mn) go first through the mobile node's home agent (ha), then the ha tunnels them to the mn's foreign network. One of the main problems in the original mip is the triangle routing problem. Triangle routing problem appears when the indirect path between cn and mn through the ha is longer than the direct path. This paper proposes a new technique to improve the performance of the original mip during the handoff. The proposed technique reduces the delay, the packet loss and the registration time for all the packets transferred between the cn and the mn. In this technique, tunneling occurs at two levels above the ha in a hierarchical network. To show the effectiveness of the proposed technique, it is compared with the original mip and another technique for solving the same problem in which tunneling occurs at one level above the ha. Simulation results presented in this paper are based on the ns2 mobility software on linux platform. The simulations results show that our proposed technique achieves better performance than the others, considering the packet delay, the packet losses during handoffs and the registration time, in different scenarios for the location of the mn with respect to the ha and fas.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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