A Flexible QoS-aware Service Gateway for Heterogeneous Wireless Networks

Kun Yang, Jie Zhang, Hsiao-Hwa Chen

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The integration of different types of wireless access networks, or heterogeneous wireless networks (HWN), is emerging. This article investigates in particular how a combination of UMTS (universal mobile telecommunications system) cellular networks, wireless LAN ad hoc networks, and DVB-H (digital video broadcasting — handheld) broadcasting networks, called UWD networks for short, is constructed and managed to provide users with QoS-aware services. Given the complexity of the UWD networks, a novel policy-based service gateway is proposed. As a software framework sitting over and communicating with the UWD network, this UWD service gateway makes network management decision by reasoning over a set of predefined policies that describe the behaviors of the UWD network. Network variables such as bandwidth, delay, and mobility in policies are fuzzified using fuzzy control theory to make the service gateway (as well as the whole UWD network) more flexible and robust. Both the prototype implementation and the evaluation results indicate the feasibility and effectiveness of the system.

Original languageEnglish
Pages (from-to)6-12
Number of pages7
JournalIEEE Network
Volume21
Issue number2
DOIs
Publication statusPublished - 2007 Jan 1

Fingerprint

Gateways (computer networks)
Heterogeneous networks
Wireless networks
Quality of service
Digital video broadcasting (DVB)
Mobile telecommunication systems
Network management
Ad hoc networks
Fuzzy control
Broadcasting
Control theory
Local area networks
Bandwidth

All Science Journal Classification (ASJC) codes

  • Software
  • Information Systems
  • Hardware and Architecture
  • Computer Networks and Communications

Cite this

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A Flexible QoS-aware Service Gateway for Heterogeneous Wireless Networks. / Yang, Kun; Zhang, Jie; Chen, Hsiao-Hwa.

In: IEEE Network, Vol. 21, No. 2, 01.01.2007, p. 6-12.

Research output: Contribution to journalArticle

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