Title :
An analytical model for IEEE 802.11e EDCF differential services
Author :
Zhu, Hua ; Chlamtac, Imrich
Author_Institution :
Dept. of Electr. Eng., Texas Univ., Richardson, TX, USA
Abstract :
Having been originally developed as an extension of the wired LANs, IEEE 802.11 lacks support for QoS and differential services. Since its introduction various extensions and modifications have been studied to address this current need and the IEEE 802.11 Task Group E is responsible for developing a QoS-aware MAC protocol that considers several service differentiation mechanisms. In this paper, we first consider the enhanced DCF access method of IEEE 802.11e. We then introduce an analytical model, which can be used to calculate the traffic priority and throughput corresponding to the configuration of multiple DCF contention parameters under saturation condition. A detailed simulation is provided to validate the proposed model.
Keywords :
Internet; access protocols; quality of service; wireless LAN; IEEE 802.11e; QoS-aware MAC protocol; differential service; enhanced DCF access method; multiple DCF contention parameter; quality of service; saturation condition; throughput calculation; traffic priority calculation; Access protocols; Analytical models; Delay; Electronic switching systems; Media Access Protocol; Physical layer; Spine; Throughput; Traffic control; Wireless LAN;
Conference_Titel :
Computer Communications and Networks, 2003. ICCCN 2003. Proceedings. The 12th International Conference on
Print_ISBN :
0-7803-7945-4
DOI :
10.1109/ICCCN.2003.1284165
