1st Annual Conference on Broadband Networks

Research Article

On wavelength assignment in optical burst switched networks

  • @INPROCEEDINGS{10.1109/BROADNETS.2004.53,
        author={Jing Teng and George N. Rouskas},
        title={On wavelength assignment in optical burst switched networks},
        proceedings={1st Annual Conference on Broadband Networks},
  • Jing Teng
    George N. Rouskas
    Year: 2004
    On wavelength assignment in optical burst switched networks
    DOI: 10.1109/BROADNETS.2004.53
Jing Teng1, George N. Rouskas1
  • 1: Department of Co mputer Science, North Carolin a State University, Raleigh, NC 27695-7534


A fundamental assumption underlying most studies of optical burst switched (OBS) networks is that full wavelength conversion is available throughout the network. In practice however, economic and technical considerations are likely to dictate a more limited and sparse deployment of wavelength converters in the optical network. Therefore, we expect wavelength assignment policies to be an important component of OBS networks. In this paper, we explain why wavelength selection schemes developed for wavelength routed networks are not appropriate for OBS. We then develop a suite of adaptive and non-adaptive policies for OBS switches. We also apply traffic engineering techniques to reduce wavelength contention through traffic isolation. Our performance study indicates that, in the absence of full conversion capabilities, intelligent choices in assigning wavelengths to bursts at the source can have a profound effect on the burst drop probability in an OBS network.