Paper Info
Title
Reducing blocking probability in dynamic WDM networks by rerouting and set-up delay tolerance
Abstract
With the emergence of bandwidth intensive applications new methodologies need to be developed for improvement of network blocking performance, without supplying extra resources in dynamic wavelength-division-multiplexing (WDM) networks. Rerouting is one among the viable and cost-effective solutions to reduce the blocking probability (BP) of optical WDM networks. Similarly, set-up delay tolerance, a metric of service level agreement (SLA) has been exploited in [1] -- [3] for improvement in network BP. In this paper, we study the rerouting in dynamic WDM network and analyze two different lightpath rerouting strategies. Moreover, we investigate further improvement in network BP by exploiting these rerouting techniques for network provisioned with set-up delay tolerance. Through extensive simulation studies, we confirm that the rerouting strategies decrease the BP substantially for network provisioned with set-up delay tolerance, even for smaller set-up delay tolerance value i.e. when the connection requests are impatient to wait for provisioning in the network. However, it also reduce BP significantly even when the network is not provisioned with set-up delay tolerance.
Year
DOI
Venue
2011
10.1109/ICON.2011.6168474
ICON
Keywords
Field
DocType
bandwidth intensive application,connection request,network bp,different lightpath,set-up delay tolerance,optical wdm network,dynamic wdm network,smaller set-up delay tolerance,cost-effective solution,dynamic wavelength-division-multiplexing,network topology,bandwidth,wavelength division multiplexing,topology,cost effectiveness
Wavelength-division multiplexing,Computer science,Service-level agreement,Computer network,Network topology,Provisioning,Bandwidth (signal processing),Distributed computing
Conference
ISSN
Citations 
PageRank 
1556-6463
1
0.35
References 
Authors
5
2
Name
Order
Citations
PageRank
Ajmal Muhammad1316.39
Robert Forchheimer212819.27