Abstract
A light trail is a unidirectional bus from a convener node to an end node. The main advantage of a light trail over a light path is that the communication channel of a light trail can be accessed by intermediate nodes providing more flexibility for traffic grooming. Several auxiliary graph models have been developed in the literature for traffic grooming in light-trail optical WDM mesh networks. These auxiliary graph models have one or more drawbacks that do not fully reflect the characteristics of a light trail. This paper develops a novel auxiliary graph model that has none of the drawbacks and is able to reflect all characteristics of a light trail. Based on the auxiliary graph model, two effective dynamic traffic grooming algorithms are proposed. The proposed dynamic traffic grooming algorithms are shown to yield low request blocking ratio.
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This research was supported by the Ministry of Science and Technology, Taiwan, under grant MOST 104-2221-E-007-082-MY2.
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Lin, HC., Zhuang, YX. A novel auxiliary graph model for effective dynamic traffic grooming in light-trail optical WDM mesh networks. Photon Netw Commun 38, 1–13 (2019). https://doi.org/10.1007/s11107-019-00837-z
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DOI: https://doi.org/10.1007/s11107-019-00837-z