Title
A positive-negative delayer for slotted OBS networks to enhance two-way signaling scheme.
Abstract
Optical burst switching (OBS) is a promising technology for next-generation optical networks and slotted OBS is one of its improved versions. Contention between bursts is the main defect in OBS (as well as slotted OBS) networks. Different strategies are proposed to resolve contentions, such as using fiber delay line (FDL) to delay one of the conflicting bursts, or adopting two-way signaling scheme to gather states of links in advance. Unfortunately, the above two strategies cannot be used together, because FDL would deviate a burst from its planned trajectory, which would eliminate the effect of link state gathering in two-way scheme. In this paper, we design a novel delayer with ordinary FDLs, which can generate both positive and negative delay. The delayer can be used in two-way scheme without affecting the efficacy of link state gathering. Simulation results show that the delayer can greatly reduce the blocking rate of two-way scheme, by just a slight expense of average delay.
Year
DOI
Venue
2019
10.1007/s11235-018-0501-x
Telecommunication Systems
Keywords
Field
DocType
Optical burst switching, Slotted OBS, Positive–negative delayer, Signaling, Fiber delay line
Link-state routing protocol,Optical burst switching,Computer science,Computer network,Trajectory
Journal
Volume
Issue
ISSN
71
1
1572-9451
Citations 
PageRank 
References 
0
0.34
4
Authors
4
Name
Order
Citations
PageRank
Xuhong Li1287.56
Junling Yuan2166.52
Qikun Zhang34111.70
Jing Zhang4373101.39