On mobility of voice-like and data traffic in IEEE802.16e

Chadi Tarhini (1, 2, 3) , Tijani Chahed (4, 1, 2, 3)

1 TSP - RST - Département Réseaux et Services de Télécommunications
2 SAMOVAR - Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux
3 CNRS - Centre National de la Recherche Scientifique
4 METHODES-SAMOVAR - Méthodes et modèles pour les réseaux

We investigate in this paper the impact of mobility on the capacity of an OFDMA-based mobile WiMAX network in the presence of two types of flows : streaming and elastic, under a dynamic configuration where users come to the system following a Poisson process and leave it after a finite duration. This duration is independent on the amount of resources for streaming flow, such as voice, and proportional to the amount of resources they receive for elastic ones, such as data. Our analysis makes it possible to quantify several performance measures such as blocking/dropping probabilities as well as mean transfer time. Our results show that mobility decreases the blocking rate, introduced some dropping and increases the overall cell throughput

Mots clés: Capacity; WiMAX; OFDMA; AMC; Mobility

Domaines: Réseaux et télécommunications [cs.NI]

Chadi Tarhini, Tijani Chahed. On mobility of voice-like and data traffic in IEEE802.16e. GLOBECOM 2008 : IEEE Global Telecommunications Conference, Nov 2008, New Orleans, United States. pp.1 - 5, ⟨10.1109/GLOCOM.2008.ECP.1030⟩. ⟨hal-01379532⟩