Research Article
Optimal Configuration of IEEE 802.11e EDCA with Variable Packet Length
@INPROCEEDINGS{10.1109/CHINACOM.2007.4469529, author={Wei Zhang and Jun Sun and Jing Liu and Youyun Xu}, title={Optimal Configuration of IEEE 802.11e EDCA with Variable Packet Length}, proceedings={2nd International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2008}, month={3}, keywords={IEEE 802.11e EDCA WLANs optimal configuration proportional fairness protocol capacity}, doi={10.1109/CHINACOM.2007.4469529} }- Wei Zhang
Jun Sun
Jing Liu
Youyun Xu
Year: 2008
Optimal Configuration of IEEE 802.11e EDCA with Variable Packet Length
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2007.4469529
Abstract
This paper addresses the optimal configuration in IEEE 802.11e enhanced distributed channel access (EDCA) wireless local area networks (WLANs). Most of the previous studies assumed that all access categories (ACs) have the same packet length. However, this assumption is not true in most practical cases. Generally, different applications have different traffic characteristics including packet length. In this paper, we study how to achieve the maximal protocol capacity of EDCA by properly choosing the protocol parameters. We prove that the maximal protocol capacity can be approximately achieved by setting the network at an optimal operating point. Furthermore, we propose a parameter configuration scheme to achieve efficient channel utilization and proportional fairness among different ACs. The proposed scheme is validated through analysis and extensive simulation.