4th International IEEE Conference on Broadband Communications, Networks, Systems

Research Article

Retransmission in OBS Networks with Fiber Delay Lines

  • @INPROCEEDINGS{10.1109/BROADNETS.2007.4550431,
        author={Kyung Joon Kwak and E. G. Coffman},
        title={Retransmission in OBS Networks with Fiber Delay Lines},
        proceedings={4th International IEEE Conference on Broadband Communications, Networks, Systems},
        publisher={IEEE},
        proceedings_a={BROADNETS},
        year={2010},
        month={5},
        keywords={},
        doi={10.1109/BROADNETS.2007.4550431}
    }
    
  • Kyung Joon Kwak
    E. G. Coffman
    Year: 2010
    Retransmission in OBS Networks with Fiber Delay Lines
    BROADNETS
    IEEE
    DOI: 10.1109/BROADNETS.2007.4550431
Kyung Joon Kwak1,*, E. G. Coffman2,*
  • 1: Jr. Electrical Engineering Department Columbia University, NY 10027
  • 2: Electrical Engineering Department Columbia University, NY 10027
*Contact email: kjkwak@ee.columbia.edu, egc@ee.columbia.edu

Abstract

While most transmission schemes in OBS networks relegate retransmission to higher protocol layers, the scheme proposed in this paper reduces retransmission delays by exploiting fiber delay lines at the optical layer. We present an analysis of the scheme that focuses not only on individual components but also on the end-to-end properties of the network. We also propose a facility location model suitable for optimizing the locations of sites with fiber delay lines when the number of such sites is limited. Evaluation of our proposed scheme on a common test network shows that major improvements in performance are possible.