An optimized QoS scheme for IMS-NEMO in heterogeneous networks

Li, Tonghong and Liao, Jianxin and Qi, Qi and Cao, Yufei and Zhu, Xiaomin and Wang, Jingyu (2012). An optimized QoS scheme for IMS-NEMO in heterogeneous networks. "International Journal of Communication Systems", v. 25 (n. 2); pp. 185-204. ISSN 1074-5351. https://doi.org/10.1002/dac.1263.

Description

Title: An optimized QoS scheme for IMS-NEMO in heterogeneous networks
Author/s:
  • Li, Tonghong
  • Liao, Jianxin
  • Qi, Qi
  • Cao, Yufei
  • Zhu, Xiaomin
  • Wang, Jingyu
Item Type: Article
Título de Revista/Publicación: International Journal of Communication Systems
Date: February 2012
ISSN: 1074-5351
Volume: 25
Subjects:
Freetext Keywords: NEMO, QoS, heterogeneous networks, IMS, Redes heterogéneas.
Faculty: Facultad de Informática (UPM)
Department: Lenguajes y Sistemas Informáticos e Ingeniería del Software
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 16064
DC Identifier: http://oa.upm.es/16064/
OAI Identifier: oai:oa.upm.es:16064
DOI: 10.1002/dac.1263
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/dac.v25.2/issuetoc
Deposited by: Memoria Investigacion
Deposited on: 27 Jun 2013 15:10
Last Modified: 21 Apr 2016 16:24
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