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Adaptive Hybrid Call Admission Control Policy for UMTS with Underlying Tunnel-WLANs Heterogeneous Networks

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Date
2009
Dewey
Informatique générale
Sujet
tunnel-WLAN heterogeneous network
DOI
http://dx.doi.org/10.1109/ICC.2009.5198701
Conference name
IEEE International Conference on Communications, 2009. ICC '09.
Conference date
06-2009
Conference city
Dresde
Conference country
Allemagne
Book title
IEEE International Conference on Communications, 2009. ICC '09. Proceedings
Publisher
IEEE
Year
2009
ISBN
978-1-4244-3435-0
URI
https://basepub.dauphine.fr/handle/123456789/12711
Collections
  • LAMSADE : Publications
Metadata
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Author
Bejaoui, Tarek
Mokdad, Lynda
Type
Communication / Conférence
Item number of pages
1-5
Abstract (EN)
In this paper we evaluate the handoff performance of an UMTS network with underlying tunnel-WLANs at the cell periphery while developing an adaptive QoS oriented CAC function, proposed to limit the occurrence of hard IEEE 802.11 WLAN-UMTS handovers to mobiles using real time applications. The proposed protocol is hybrid and based on the service class differentiation, the location in the heterogeneous infrastructure and a vertical handoff decision function as well. The results show that our policy achieves significant performance and gains. It maximizes the utilization of the resources available at the WLAN cells, and meets as much as possible the QoS requirement of higher priority users.

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