A fair channel scheduling algorithm in optical burst-switched networks

Ching Fang Hsu, Li Cheng Yang, Ke Kuan Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Among various signaling protocols designed for OBS networks, the most popular one is Just-Enough-Time (JET) protocol. JET can utilize the network capacity efficiently and reduce end-to-end transmission delay effectively. However, it may suffer from an intrinsic deficiency -fairness problem. Fairness problem is a traditional problem existing in various kinds of networks. It not only results in a phenomenon that bursts with shorter hops are generally favored but also deteriorates the networks utilization. In this paper, we investigated this problem and proposed a fair channel scheduling algorithm as a solution. Generally speaking, there is usually a tradeoff between fairness and blocking performance. Hence, our objective is to keep balanced between the two conflicting metrics. It gives each burst a dynamic priority which is defined by several characteristics of the burst. When a contention occurs, the proposed scheme picks the preferable burst and drops the other one according to their priorities then. Simulation results show that our scheme can improve fairness without degrading dropping performance too much. In addition, it increases the effective link utilizations as well.

Original languageEnglish
Title of host publicationProceedings - 22nd International Conference on Advanced Information Networking and Applications, AINA 2008
Pages78-83
Number of pages6
DOIs
Publication statusPublished - 2008 Sep 1
Event22nd International Conference on Advanced Information Networking and Applications, AINA 2008 - Gino-wan, Okinawa, Japan
Duration: 2008 Mar 252008 Mar 28

Publication series

NameProceedings - International Conference on Advanced Information Networking and Applications, AINA
ISSN (Print)1550-445X

Other

Other22nd International Conference on Advanced Information Networking and Applications, AINA 2008
CountryJapan
CityGino-wan, Okinawa
Period08-03-2508-03-28

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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