弹性光网络中路由与频谱分配算法综述

doi:10.12305/j.issn.1001-506X.2022.06.28

Abstract

Abstract:

Elastic optical networks (EONs), as the promising next generation optical networks, have received extensive attention in recent years. Routing and spectrum allocation (RSA) is one of the core technologies for network design and control. This paper systematically analyzes the concept of EONs and describes the key issue of RSA in detail. From the static and dynamic perspective, state-of-the-art RSA algorithms are summarized and classified into the exact algorithm, the intelligent optimization algorithm, the heuristic algorithm, and the learning-based algorithm on the basis of the algorithmic framework with different characteristics. Combined with the future application requirements of EONs, the difficulties and challenges faced by the RSA algorithm are discussed, and the development trend of the RSA algorithm is prospected.

Key words: elastic optical networks (EONs), routing and spectrum allocation (RSA), exact algorithm, intelligent optimization algorithm, heuristic algorithm, learning-based algorithm

CLC Number:

TN929.1

Jiawei ZHANG, Fengchen QIAN, Junqiang YANG, Qian ZHAO, Zhengrong ZHANG. Survey on routing and spectrum allocation algorithm in elastic optical networks[J]. Systems Engineering and Electronics, 2022, 44(6): 2001-2010.

Figures/Tables 8

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Table 1

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算法分类		算法名称
静态算法	精确算法	CPLEX求解器^[21-25], CG^{[18, 26-30]}, BB^[24], BP^[31-34]
	启发式算法	常用路由策略^{[12-14, 36]}, 常用频谱策略^{[37-38, 40]}, 其他^{[39, 41-45]}
	智能优化算法	GA^[46-54], TS^[55-56], PSO^[56], DE^[57], SA^[58], BCO^[59]
动态算法	启发式算法	频谱碎片感知^[62-66], 频谱碎片重构^[67-69], 路由状态感知^[70-78], 其他^[79-83]
动态算法	学习型算法	间接学习型^[86-87], 直接学习型^[88-89]

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Survey on routing and spectrum allocation algorithm in elastic optical networks

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