Quality of service provisioning in 802.11e networks: challenges, approaches, and future directions

Authors:
N. Ramos;D. Panigrahi;S. Dey
Affiliations:
California Univ., San Diego, La Jolla, CA, USA;-;-
Venue:
IEEE Network: The Magazine of Global Internetworking
Year:
2005

Citing 0
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Abstract

In order to support diverse application requirements, a new standard called IEEE 802.11e is being proposed to improve quality of service in wireless LAN networks. There are, however, a few remaining challenges that need to be addressed in order to enable comprehensive QoS support using 802.11e. In this article we provide an overview of a few of these challenges, describe their possible impact on QoS, and provide a survey of techniques that potentially could be used to address the identified challenges. Specifically, we focus on three challenges: handling time-varying network conditions, adapting to varying application profiles, and managing link layer resources. Additionally, we present several potential future directions toward improved QoS in wireless networks.