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首页> 外文期刊>International journal of communication systems >An optimized QoS scheme for IMS-NEMO in heterogeneous networks
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An optimized QoS scheme for IMS-NEMO in heterogeneous networks

机译：异构网络中IMS-NEMO的优化QoS方案

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摘要

The network mobility (NEMO) is proposed to support the mobility management when users move as a whole. In IP Multimedia Subsystem (IMS), the individual Quality of Service (QoS) control for NEMO results in excessive signaling cost. On the other hand, current QoS schemes have two drawbacks: unaware-ness of the heterogeneous wireless environment and inefficient utilization of the reserved bandwidth. To solve these problems, we present a novel heterogeneous bandwidth sharing (HBS) scheme for QoS provision under IMS-based NEMO (IMS-NEMO). The HBS scheme selects the most suitable access network for each session and enables the new coming non-real-time sessions to share bandwidth with the Variable Bit Rate (VBR) coded media flows. The modeling and simulation results demonstrate that the HBS can satisfy users' QoS requirement and obtain a more efficient use of the scarce wireless bandwidth.
机译：提出了网络移动性（NEMO）以支持用户整体移动时的移动性管理。在IP多媒体子系统（IMS）中，NEMO的单独服务质量（QoS）控制导致信令成本过高。另一方面，当前的QoS方案具有两个缺点：对异构无线环境的不了解以及对预留带宽的利用不足。为了解决这些问题，我们提出了一种新的异构带宽共享（HBS）方案，用于在基于IMS的NEMO（IMS-NEMO）下提供QoS。 HBS方案为每个会话选择最合适的接入网络，并使新来的非实时会话能够与可变比特率（VBR）编码的媒体流共享带宽。建模和仿真结果表明，HBS可以满足用户的QoS要求，并可以更有效地利用稀缺的无线带宽。

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  • 来源
    《International journal of communication systems》 |2012年第2期|p.185-204|共20页
  • 作者

    Jianxin Liao; Qi Qi; Tonghong Li; Yufei Cao; Xiaomin Zhu; Jingyu Wang;

  • 作者单位

    State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China,EBUPT Information Technology Co., Ltd., Beijing 100191, P.R. China;

    State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China,EBUPT Information Technology Co., Ltd., Beijing 100191, P.R. China;

    Technical University of Madrid, Madrid 28660, Spain;

    EBUPT Information Technology Co., Ltd., Beijing 100191, P.R. China;

    State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China,EBUPT Information Technology Co., Ltd., Beijing 100191, P.R. China;

    State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China,EBUPT Information Technology Co., Ltd., Beijing 100191, P.R. China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    NEMO; QoS; heterogeneous networks; IMS;

    机译：NEMO;QoS;异构网络;

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