| Publisher | Lund University | ||
|---|---|---|---|
| Format | 166.9KB PDF | Date added | 12 May 2006 |
| Topics | Wireless LAN, Wi-Fi (802.11), Quality of Service | ||
| Downloads | 36 | ||
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. This paper considers the contention-based medium access method, the Enhanced Distributed Channel Access (EDCA), and proposes an extension to it such that it can be used to provide QoS guarantees in WLANs operating in ad hoc mode.
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