Managing end-to-end quality of service in multiple heterogeneous wireless networks

  • Authors:

  • Punit Ahluwalia;Upkar Varshney

  • Affiliations:

  • Department of CIS & QM, The University of Texas-Pan American, Edinburg, Texas;Department of Computer Information Systems Georgia State University Atlanta, Georgia

  • Venue:
  • International Journal of Network Management
  • Year:
  • 2007

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Abstract

Supporting quality of service (QoS) in wireless networks has been a very rich and interesting area of research. Many significant advances have been made in supporting QoS in single wireless networks. However, the support for QoS across multiple heterogeneous wireless networks will be required in future wireless networks. In connections spanning multiple wireless networks, end-to-end QoS will depend on several factors such as mobility patterns, connection patterns, and the QoS policies in each of the networks. In this paper, we present an architecture for multiple heterogeneous wireless networks, several QoS schemes, a simulation model and several interesting results. The simulation model can evaluate the QoS performance under a variety of network configurations, user and mobility types, and network resources. Our results show that end-to-end QoS depends on several factors, including system utilization, mobility levels, and the individual QoS schemes implemented in individual networks. We also show how the QoS ideas presented in this paper can be used by wireless carriers for improved QoS support and management.