Title
Delay analysis of converged optical-wireless networks with quality of service support
Abstract
The convergence of two popular access technologies, namely Worldwide interoperability for Microwave Access (WiMAX) and passive optical network (PON) is a promising access solution that combines the mobility feature of WiMAX and the ample bandwidth of PONs. In such a converged optical-wireless access network, the provision of quality of service (QoS) support is a challenging issue, mainly because of the different bandwidth allocation mechanisms of the two access technologies. Since the considered convergence seems to be dominant, it deserves assiduous analysis and evaluation. In this study, the authors investigate the delay performance of a converged optical-wireless network that provides QoS support by considering multiple service-classes with different priorities. In the wireless domain, the IEEE 802.16 standard is applied, whereas in the optical domain a wavelength division multiplexing ethernet PON provides connectivity to both wired and wireless users. The authors present an analytical framework for the calculation of the average end-to-end packet delay of each service-class, by developing two queuing models for each domain of the converged network. The end-to-end delay is calculated as the sum of the queuing delay in both domains, and the transmission and propagation delay in the optical domain. The accuracy of the proposed analysis has been verified by simulation and found to be quite satisfactory.
Year
DOI
Venue
2014
10.1049/iet-cds.2013.0413
Circuits, Devices & Systems, IET  
Keywords
Field
DocType
WiMax,bandwidth allocation,optical fibre LAN,passive optical networks,quality of service,queueing theory,wavelength division multiplexing,IEEE 802.16 standard,PON,QoS support,WiMAX,average end-to-end packet delay,bandwidth allocation mechanisms,converged optical-wireless access network,delay analysis,delay performance,multiple service-classes,passive optical network,propagation delay,quality of service support,queuing delay,queuing models,wavelength division multiplexing Ethernet PON,worldwide interoperability for microwave access
Network delay,Computer science,Queuing delay,Passive optical network,Network packet,Quality of service,Computer network,WiMAX,Optical wireless,Access network
Journal
Volume
Issue
ISSN
8
5
1751-858X
Citations 
PageRank 
References 
0
0.34
6
Authors
5
Name
Order
Citations
PageRank
J. S. Vardakas19817.23
Ioannis D. Moscholios231833.14
Nizar Zorba323332.78
Michael D. Logothetis417817.72
Christos V. Verikoukis51348115.34