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UPTIME: an IMS-based mobility framework for next generation mobile networks

机译：UPTIME：用于下一代移动网络的基于IMS的移动性框架

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摘要

Seamless inter-technology mobility is one of the fundamental requirements of next generation mobile networks. For seamless mobility, handover delay and packet loss should be minimized. However, existing solutions suffer from a number of shortcomings in satisfying these requirements: first, handover preparation schemes fail to minimize the handover delay as much as possible. Second, minimizing packet loss which is usually using soft handover (SHO) schemes are excessively wasteful of scarce resources. In this paper, we propose the uninterrupted proactive connection transfer for IMS mobility enhancement (UPTIME) mobility framework which achieves seamless mobility while minimizing excessive power and radio resource consumption. UPTIME incorporates two mechanisms; a proactive handover preparation method and an optimized SHO technique for handover execution. We demonstrate the benefits of the proposed framework through both analysis and simulation. Our simulation results for typical LTE/WiMAX handovers show that the handover preparation delay can be reduced by 70 %, and good packet loss performance can be achieved whilst saving 43 % of radio resources and 48 % of battery power.
机译：无缝的技术间移动性是下一代移动网络的基本要求之一。为了实现无缝移动，应将切换延迟和丢包率降至最低。但是，现有的解决方案在满足这些要求方面存在许多缺点：首先，切换准备方案无法将切换延迟尽可能地最小化。其次，通常使用软切换（SHO）方案来最大程度地减少数据包丢失会过度浪费稀缺的资源。在本文中，我们提出了用于IMS移动性增强（UPTIME）移动性框架的不间断主动连接转移，该框架可实现无缝移动性，同时将过多的功率和无线电资源消耗降至最低。 UPTIME包含两种机制；一种主动的切换准备方法和优化的SHO技术，用于执行切换。我们通过分析和仿真来证明所提出框架的好处。我们针对典型LTE / WiMAX切换的仿真结果表明，切换准备延迟可以减少70％，并且可以实现良好的丢包性能，同时节省43％的无线电资源和48％的电池电量。

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  • 来源
    《Wireless Networks》 |2014年第7期|1967-1979|共13页
  • 作者

    Abolfazl Nazari; Philip Branch; Jason But; Hai L. Vu;

  • 作者单位

    Centre for Advanced Internet Architecture, Swinburne University of Technology, Melbourne, Australia;

    Centre for Advanced Internet Architecture, Swinburne University of Technology, Melbourne, Australia;

    Centre for Advanced Internet Architecture, Swinburne University of Technology, Melbourne, Australia;

    Centre for Advanced Internet Architecture, Swinburne University of Technology, Melbourne, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Seamless handover; Mobility management; IMS; NGMN;

    机译：无缝切换;流动性管理;IM小号;NGMN;

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