Abstract Routing, spectrum assignment are key issues and the hot focus area in multi-domain elastic optical networks (EONs). When the EONs with multi-cores, more challenges will be faced, such as core allocation, crosstalk, etc. To tackle these challenges, we establish a mixed integer linear programming model with the maximum index used frequency slots (MIUFS) to be minimized, which is used to determine the optimal schemes of routing, core allocation and spectrum assignment for the multi-domain EONs with multi-cores. To solve the model efficiently, an efficient genetic algorithm with tailor-made crossover, mutation and local search operators is designed. To evaluate the model and the proposed algorithm, several simulation experiments are conducted on two different multi-domain EONs, and the experimental results show that the proposed algorithm has a higher performance than the compared algorithms.

中文翻译：

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具有多芯光纤的多域弹性光网络的路由、频谱和核心分配

摘要 路由、频谱分配是多域弹性光网络（EONs）中的关键问题和热点。当 EON 具有多核时，将面临更多挑战，例如核分配、串扰等。 为了应对这些挑战，我们建立了一个混合整数线性规划模型，其中最大索引使用频率槽（MIUFS）要最小化，用于确定具有多核的多域EON的路由、核分配和频谱分配的最优方案。为了有效地求解模型，设计了一种具有定制交叉、变异和局部搜索算子的高效遗传算法。为了评估模型和所提出的算法，在两个不同的多域 EON 上进行了几次模拟实验，