异构无线网络的分析与实验

First International Conference on Testbeds and Research Infrastructures for the DEvelopment of NeTworks and COMmunities Pub Date : 2005-02-23 DOI:10.1109/TRIDNT.2005.13

M. Bernaschi, A. Pescapé, F. Cacace, S. Za

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引用次数: 33

摘要

无线和移动网络代表了无处不在的信息系统访问的使能技术。然而，仍有一些关键问题阻碍着这些技术的广泛应用。在本文中，我们分析和讨论了我们在一个真实的泛在网络试验台上的经验，该试验台能够提供异构网络之间的无缝切换。我们描述了基于链路层信息的移动IPv6/IPv4互操作性和有效机制，用于有线和无线网络之间的无缝切换。我们介绍了在建立真实测试平台时采用的解决方案，并对观察到的性能进行了评估，包括对802.11 WLAN、GPRS和UMTS三种无线接入网络技术之间的互操作性进行了表征。

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Analysis and experimentation over heterogeneous wireless networks

Wireless and mobile networks represent an enabling technology for ubiquitous access to information systems. However, there are critical issues that still prevent the widespread use of these technologies. In this paper we analyze and discuss our experience over a real ubiquitous network testbed capable to provide a seamless hand-off among heterogeneous networks. We describe Mobile IPv6/IPv4 interoperability and an efficient mechanism, based on link-layer information, for a seamless handoff among wired and wireless networks. We present the solutions adopted in setting up a real testbed and provide an evaluation of the observed performance, including a characterization of interoperability among three wireless access network technologies: 802.11 WLAN, GPRS, and UMTS.

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First International Conference on Testbeds and Research Infrastructures for the DEvelopment of NeTworks and COMmunities

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