Admission Control for VoIP and Data Traffic in IEEE 802.11 WLANs

Periklis Chatzimisios; Paschalis Raptis; Vasileios Vitsas; Dimitrios Amanatiadis; K. Paparrizos

1st International ICST Workshop on MOdelling and DEsign of wireless mesh NETworks

Research Article

Admission Control for VoIP and Data Traffic in IEEE 802.11 WLANs

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.4108/ICST.VALUETOOLS2008.4579,
    author={Periklis Chatzimisios and Paschalis Raptis and Vasileios Vitsas and Dimitrios Amanatiadis and K. Paparrizos},
    title={Admission Control for VoIP and Data Traffic in IEEE 802.11 WLANs},
    proceedings={1st International ICST Workshop on MOdelling and DEsign of wireless mesh NETworks},
    publisher={ACM},
    proceedings_a={MODENETS},
    year={2010},
    month={5},
    keywords={IEEE 802.11; DCF; throughput; variable packet length; VoIP.},
    doi={10.4108/ICST.VALUETOOLS2008.4579}
}

Periklis Chatzimisios
Paschalis Raptis
Vasileios Vitsas
Dimitrios Amanatiadis
K. Paparrizos
Year: 2010
Admission Control for VoIP and Data Traffic in IEEE 802.11 WLANs
MODENETS
ICST
DOI: 10.4108/ICST.VALUETOOLS2008.4579

Periklis Chatzimisios¹^,*, Paschalis Raptis¹^,*, Vasileios Vitsas¹^,*, Dimitrios Amanatiadis¹^,*, K. Paparrizos²^,*

1: Information Technology, Technological Educational Institution, Thessaloniki, Greece +30 2310 791436
2: Applied Informatics, University of Macedonia, Thessaloniki, Greece +30 2310 891895

*Contact email: peris@it.teithe.gr, praptis@it.teithe.gr, vitsas@it.teithe.gr, dima@it.teithe.gr, paparriz@uom.gr

Abstract

This paper presents an novel analytical model for calculation of throughput of the IEEE 802.11 Distributed Coordination Function (DCF) under variable packet length assuming ideal channel conditions. The proposed model considers basic access scheme but can be easily applied to RTS/CTS reservation scheme. Moreover, we use this model to present a simple algorithm to compute the voice capacity of an IEEE 802.11b WLAN and propose a simple admission control algorithm in order to maintain voice quality in a WLAN. Comparison of analytical results produced utilizing our proposed scheme against other admission control algorithms found in the literature shows that our model is fairly accurate.

Keywords: IEEE 802.11; DCF; throughput; variable packet length; VoIP.

Published: 2010-05-16
Publisher: ACM
Modified: 2010-05-16

: http://dx.doi.org/10.4108/ICST.VALUETOOLS2008.4579