An Enhancement to the IEEE 802.11e EDCA Providing QoS Guarantees
Författare
Summary, in English
One of the challenges that must be overcome to realize the practical benefits of ad hoc networks is quality of service (QoS). However, the IEEE 802.11 standard, which undeniably is the most widespread wireless technology of choice for WLANs and ad hoc networks, does not address this issue. In order to support applications with QoS requirements, the upcoming IEEE 802.11e standard enhances the original IEEE 802.11 MAC protocol by introducing a new coordination function which has both contention-based and contention-free medium access methods. In this paper, we consider the contention-based medium access method, the EDCA, and propose an extension to it such that it can be used to provide QoS guarantees in WLANs operating in ad hoc mode. Our solution is fully distributed, uses admission control to regulate the usage of resources and gives stations with high-priority traffic streams an opportunity to reserve time for collision-free access to the medium.
Publiceringsår
2006
Språk
Engelska
Sidor
195-212
Publikation/Tidskrift/Serie
Telecommunication Systems
Volym
31
Issue
2-3
Fulltext
- Available as PDF - 361 kB
- Download statistics
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Engineering and Technology
Nyckelord
- QoS-IEEE 802.11e-distributed MAC
- admission control and scheduling
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1018-4864