Designing a heterogeneous network including systems providing different QoS, such as the emerging WiMAX, is a difficult task. The integration of a WiMAX access system with Differentiated Services (DiffServ) enhances the overall performance of the network. This paper investigates the interworking between WiMAX and DiffServ networks, by measuring one-way delay, jitter and packet drop rate of VoIP traffic from WiMAX users in a test-bed scenario with and without DiffServ. It is shown that DiffServ in the core network solves the congestion problem in efficient way by providing service priority to delay-sensitive traffic. The results show valuable gains using DiffServ network.

QoS Performance Analysis for VoIP Traffic in Heterogeneous Networks with WiMAX Access

HASEEB, Abdul;TRALLI, Velio
2011

Abstract

Designing a heterogeneous network including systems providing different QoS, such as the emerging WiMAX, is a difficult task. The integration of a WiMAX access system with Differentiated Services (DiffServ) enhances the overall performance of the network. This paper investigates the interworking between WiMAX and DiffServ networks, by measuring one-way delay, jitter and packet drop rate of VoIP traffic from WiMAX users in a test-bed scenario with and without DiffServ. It is shown that DiffServ in the core network solves the congestion problem in efficient way by providing service priority to delay-sensitive traffic. The results show valuable gains using DiffServ network.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1523514
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact