Paper Info
Title
Cross-layer path computation for dynamic traffic grooming: in mesh WDM optical networks
Abstract
Traffic grooming in wavelength division multiplexing (WDM) optical networks is an operation to consolidate multiple low-speed traffic streams onto high-speed lightpaths. Traffic grooming of dynamic traffic over a dynamic logical topology, where lightpaths (logical links) are dynamically set up and torn down, is called dynamic traffic grooming, where a major task is to find a path (a list of adjacent lightpaths) in the dynamic logical topology to carry an incoming call. Dynamic traffic grooming is a significant issue in WDM optical networks due to the customer's need of the "bandwidth-on-demand" service. This paper studies path computation in dynamic traffic grooming, using various link cost functions. We propose a path computation approach utilizing the resource usage information in both logical and physical layers. We have evaluated the performance of this cross layer path computation approach, compared with the approach using the resource usage information in the logical layer only. The numerical results show that the cross layer path computation approach can achieve 10% - 20% lower blocking probability.
Year
DOI
Venue
2005
10.1145/1167253.1167257
ACM Southeast Regional Conference (2)
Keywords
Field
DocType
resource usage information,multiple low-speed traffic stream,mesh wdm,path computation approach,cross layer path computation,dynamic logical topology,logical link,dynamic traffic grooming,cross-layer path computation,optical network,paper studies path computation,logical layer,dynamic traffic,physical layer,traffic grooming,cost function,dynamic logic
Cross layer,Wavelength-division multiplexing,Logical topology,Logical conjunction,Computer science,Computer network,Wdm optical networks,Computation,Traffic grooming,Distributed computing
Conference
ISBN
Citations 
PageRank 
1-59593-059-0
1
0.39
References 
Authors
7
2
Name
Order
Citations
PageRank
ChunSheng Xin146439.25
Feng He2789.69