LI Ji-bi, MAO Qi-jian, ZHANG Zhi-zhong. Scheduling algorithm of optical switches with switching delay[J]. 2006,(2):5-7. DOI: 10.13756/j.gtxyj.2006.02.002.
A new algorithm-2 approximation heuristic algorithm is presented for the scheduling of optical switches with configuration delay
which works by combining two main operations: matching selection and weight decision.Matching selection is achieved by greedy algorithm
which determines the times of the switch
while weight decision decides the holding time of the configuration selected
which is achieved by choosing a value such that the remaining traffic matrix has the best possible cost estimate.The algorithm has an approximation factor of 2 with a time complexity of O(N
2
logN).The simulation results demonstrate that this algorithm is close to optimal scheduling and more self-adjustable to various traffic arrival patterns than DOUBLE