An Efficient Scheduling Algorithm for Time-Driven Switching Networks

Truong, Thu-Huong and Baldi, Mario and Ofek, Yoram (2007) An Efficient Scheduling Algorithm for Time-Driven Switching Networks. UNSPECIFIED. (Unpublished)

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    Abstract

    In Time-driven Switching (TDS) networks with non-immediate forwarding (NIF) provides scheduling flexibility and consequently, reduces the blocking probability (blocking is defined to take place when transmission capacity is available, but without a feasible schedule). However, it has been shown that with NIF scheduling complexity may grow exponentially. Efficiently finding a schedule from an exponential set of potential schedules is the focus of this paper. The work first presents the mathematical formulation of the NIF scheduling problem, under a wide variety of networking requirements, then introduces an efficient (i.e., having at most polynomial complexity) search algorithm that guarantees to find at least one schedule whenever such a schedule exists. The novel algorithm uses "trellis" representations and the well-known survivor-based searching principle.

    Item Type: Departmental Technical Report
    Department or Research center: Information Engineering and Computer Science
    Subjects: Q Science > QA Mathematics > QA075 Electronic computers. Computer science
    Uncontrolled Keywords: scheduling, search algorithms, time-driven switching, pipeline forwarding, optical networks
    Report Number: DIT-07-002
    Repository staff approval on: 13 Feb 2007

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