A Statistical Hybrid Traffic Control for IEEE 802.11e WLANs

Paolo Giacomazzi,; Luigi Musumeci; Gabriella Saddemi; Giacomo Verticale

6th International ICST Symposium on Modeling and Optimization

Research Article

A Statistical Hybrid Traffic Control for IEEE 802.11e WLANs

Download406 downloads

Cite: BibTeX Plain Text

@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

Paolo Giacomazzi,¹^,*, Luigi Musumeci¹^,*, Gabriella Saddemi¹^,*, Giacomo Verticale¹^,*

1: Politecnico di Milano, Dept. of Electronics and Information, Piazza Leonardo Da Vinci 32, 20133 Milano, ITALY Tel.: +39-02-2399.3657 – Fax: +39-02-2399.3413

*Contact email: giacomaz@elet.polimi.it, musumeci@elet.polimi.it, saddemi@elet.polimi.it, vertical@elet.polimi.it

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.

Keywords: Analytical models Call admission control Communication system traffic control Delay estimation Radio control Road accidents Testing Throughput Traffic control Wireless LAN

Published: 2008-08-01
Publisher: IEEE
Modified: 2010-05-16

: http://dx.doi.org/10.4108/ICST.WIOPT2008.3001