An Analysis for Differentiated Services in IEEE 802.11 and IEEE 802.11e Wireless LANs
ICDCS '04 Proceedings of the 24th International Conference on Distributed Computing Systems (ICDCS'04)
Physical Rate Based Admission Control for HCCA in IEEE 802.11e WLANs
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1
FHCF: a simple and efficient scheduling scheme for IEEE 802.11e wireless LAN
Mobile Networks and Applications
| Hi-index | 0.01 |
The new standard IEEE 802.11e targets at enhancing the legacy 802.11 so that QoS management over WLAN standards becomes possible. This is done by the introduction of two new functions, the enhanced distributed channel access (EDCA) and the hybrid coordination function controlled channel access (HCCA) for offering diffserv and intserv functionalities. The efficient coordination of both functions plays a crucial role in terms of the performance of 802.11e. In this paper we propose a new method for the calculation of the service interval by using the send rates of different traffic streams and suggest an advanced way to determine which one of the functions for which kind of streams to deploy. We show that despite its simplicity the proposed methods decrease packet delay and loss rates significantly and increases the number of streams having acceptable QoS levels