Research Article
A Statistical Hybrid Traffic Control for IEEE 802.11e WLANs
@INPROCEEDINGS{10.4108/ICST.WIOPT2008.3001, author={Paolo Giacomazzi, and Luigi Musumeci and Gabriella Saddemi and Giacomo Verticale}, title={A Statistical Hybrid Traffic Control for IEEE 802.11e WLANs}, proceedings={6th International ICST Symposium on Modeling and Optimization}, publisher={IEEE}, proceedings_a={WIOPT}, year={2008}, month={8}, keywords={Analytical models Call admission control Communication system traffic control Delay estimation Radio control Road accidents Testing Throughput Traffic control Wireless LAN}, doi={10.4108/ICST.WIOPT2008.3001} }- Paolo Giacomazzi,
Luigi Musumeci
Gabriella Saddemi
Giacomo Verticale
Year: 2008
A Statistical Hybrid Traffic Control for IEEE 802.11e WLANs
WIOPT
IEEE
DOI: 10.4108/ICST.WIOPT2008.3001
Abstract
The IEEE 802.11e WLAN supports prioritized Qual-ity of Services (QoSs), but it needs additional mechanisms to sup-port also the strict QoS required by real-time services. It has been shown that best performance is achieved when the WLAN is unsaturated. Therefore, a call admission control scheme is re-quired to maintain the WLAN working in the unsaturated case. In this paper, we propose an analytical model for the capacity as-signment necessary to satisfy the delay requirements for a given number of real-time flows belonging to two different traffic classes. At the same time, our analysis includes a rate control al-gorithm, as proposed in literature, that allows the best-effort traf-fic to fully use the residual bandwidth left by the real-time traffic, thereby achieving high channel utilization.
