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首页> 外文会议>Proceedings of the 2005 ACM conference on Emerging network experiment and technology >Improving mobile IP handover latency on end-to-end TCP in UMTS/WCDMA networks
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Improving mobile IP handover latency on end-to-end TCP in UMTS/WCDMA networks

机译：改善UMTS / WCDMA网络中端到端TCP上的移动IP切换延迟

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摘要

Network-layer handover latency is one of the fundamental limitations in any IP-based cellular network. A long handover latency results in high packet losses and severely degrades its end-to-end TCP performance. Delay sensitive real-time applications demands packet lossless and low latency Quality-of-Service (QoS) guarantee during handover. S-MIP [4] mitigates these effects by integrating hierarchical approach [2] and fast-handover mechanism [3] to achieve a seamless handover architecture with no packet losses and extremely low handover latency operating in WLAN environment. The challenge to provide seamless handover scheme in UMTS IP-based networks lies on different mobility management and access network handover techniques employed between the heterogeneous UMTS/WCDMA and IP networks. We present a converged network architecture that extend and synthesize the key benefits of S-MIP into UMTS/ WCDMA packet networks. The effect of this seamless handover architecture under UMTS environments on end-to-end TCP communications is evaluated.
机译：网络层切换延迟是任何基于IP的蜂窝网络的基本限制之一。较长的切换延迟会导致较高的数据包丢失，并严重降低其端到端TCP性能。时延敏感的实时应用要求在切换过程中保证数据包无损和低时延的服务质量（QoS）。 S-MIP [4]通过集成分层方法[2]和快速切换机制[3]来减轻这些影响，以实现无缝切换架构，而不会丢失数据包，并且在WLAN环境中运行时切换延迟极低。在基于UMTS IP的网络中提供无缝切换方案的挑战在于异构UMTS / WCDMA与IP网络之间采用的不同的移动性管理和接入网络切换技术。我们提出了一种融合的网络架构，该架构将S-MIP的关键优势扩展并综合到UMTS / WCDMA分组网络中。评估了UMTS环境下这种无缝切换体系结构对端到端TCP通信的影响。

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