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首页> 外文会议>IFIP TC-6 TC-11 International Conference on Communications and Multimedia Security >A Secure Context Management for QoS-Aware Vertical Handovers in 4G Networks
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A Secure Context Management for QoS-Aware Vertical Handovers in 4G Networks

机译：4G网络中的QoS感知垂直切换的安全上下文管理

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摘要

In the 4G mobile networks which are expected to be very complex systems interconnecting various technologies, new intelligent services will need to be aware of various contexts. In this paper, we present the context management framework that exploits the agent technology in mobile communications and services. We focus mainly on the seamless secure handover which uses context information regarding location privacy, security, network environment, and QoS priority. We designed QoS Broker that can perform the autonomous decision making for context-aware handover without the direct intervention of users. To minimize the signaling overhead, we present an efficient context transfer mechanism among the Brokers. We also designed the context model for the seamless vertical handovers so that the Brokers could ensure the right context is available in the right place at right time. We developed the testbed and analyzed the performance of QoS-aware secure roaming with context transfer. Analytical results show that our context-aware vertical handover provides better performance and security with lower latency.
机译：在4G移动网络中，预期是非常复杂的系统互连各种技术，新的智能服务需要了解各种上下文。在本文中，我们介绍了利用代理技术在移动通信和服务中利用代理技术的上下文管理框架。我们主要专注于使用关于位置隐私，安全性，网络环境和QoS优先级的上下文信息的无缝安全切换。我们设计了QoS经纪人，可以在没有用户直接干预的情况下执行上下文的切换的自主决策。为了最小化信令开销，我们在经纪人之间提出了一个有效的上下文传输机制。我们还为无缝垂直切换设计了上下文模型，以便经纪人可以确保正确的上下文在正确的位置。我们开发了测试用过的测试，并分析了QoS-Areave Secure Roaming的性能，与上下文传输。分析结果表明，我们的上下文感知垂直切换提供更好的性能和安全性，具有较低的延迟。

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