NDLI: Hop-count fairness-aware protocols for improved bandwidth utilization in WDM burst-switched networks

Content Provider	Springer Nature Link
Author	Tariq, Sana Bassiouni, Mostafa A.
Copyright Year	2012
Abstract	In this paper, we propose and evaluate two schemes for improving bandwidth utilization in optical burst-switched (OBS) networks employing timer-based burst assembly routines. The first scheme adjusts the size of the search space for a free wavelength in optical switches using a balancing formula that promotes throughput and hop-count fairness. The formula achieves controllable increase in the size of the search space either when the size of the burst increases or when the hop count of the traveling burst increases. The second scheme proactively discards bursts at the source network access station using a dropping probability matrix that satisfies certain horizontal and vertical constraints. The matrix assigns smaller dropping probabilities to bursts with larger sizes and longer lightpaths. The results of extensive performance tests to evaluate the two schemes and compare them with previous schemes for improving fairness and throughput are presented and discussed. The results show that the two schemes improve the throughput of optical OBS networks and enhance the hop-count fairness.
Starting Page	35
Ending Page	46
Page Count	12
File Format	PDF
ISSN	1387974X
Journal	Photonic Network Communications
Volume Number	25
Issue Number	1
e-ISSN	15728188
Language	English
Publisher	Springer US
Publisher Date	2012-12-16
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical burst switching Network throughput Hop-count fairness WDM networks Computer Communication Networks Electrical Engineering Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Computer Networks and Communications Electrical and Electronic Engineering Hardware and Architecture Software

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