An optimized QoS scheme for IMS-NEMO in heterogeneous networks

被引：13

作者：

Liao, Jianxin ^{[1
,2
]}

Qi, Qi ^{[1
,2
]}

Li, Tonghong ^{[3
]}

Cao, Yufei ^{[2
]}

Zhu, Xiaomin ^{[1
,2
]}

Wang, Jingyu ^{[1
,2
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

[2] EBUPT Informat Technol Co Ltd, Beijing 100191, Peoples R China

[3] Tech Univ Madrid, Madrid 28660, Spain

来源：

INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2012年 / 25卷 / 02期

基金：

中国国家自然科学基金;

关键词：

NEMO; QoS; heterogeneous networks; IMS; MOBILITY MANAGEMENT; AGGREGATION; SUPPORT; IP; SELECTION; SERVICES;

D O I：

10.1002/dac.1263

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

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: unawareness 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. Copyright (C) 2011 John Wiley & Sons, Ltd.

引用

页码：185 / 204

页数：20

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