Distance-adaptive routing, modulation, and spectrum assignment (DA-RMSA) algorithm based on signal overlap in elastic optical networks (EONs)

Wenzheng Chen; Xiaosong Yu; Yongli Zhao; Jie Zhang

doi:10.1117/12.2522916

14 February 2019 Distance-adaptive routing, modulation, and spectrum assignment (DA-RMSA) algorithm based on signal overlap in elastic optical networks (EONs)

Wenzheng Chen, Xiaosong Yu, Yongli Zhao, Jie Zhang

Author Affiliations +

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 1104827 (2019) https://doi.org/10.1117/12.2522916
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

In Elastic Optical Networks (EONs), elastic operations have been constrained by the assumption that an optical signal has to occupy a dedicated frequency range, with no sharing of spectrum resources with other independent optical signals. Recently, the emergence of signal overlap techniques can break this traditional constraint in theory. In this study, we fully combine the characteristics of the application signal overlap technology, summarize two factors that affect the ultimate transmission distance of an optical signal as the modulation format of the optical signal and the interval between the center frequencies of the two optical signals, and make a reasonable assumption about their correspondence. On this basis, we propose a Routing, Modulation level and Spectrum Assignment (RMSA) algorithm based on Signal overlap for EONs. The paper simulates the two strategies of the algorithm and compares them with the basic algorithm without signal overlap. The results show that it can significantly reduce the bandwidth blocking probability, especially under heavy traffic load scenario.

Citation Download Citation

Wenzheng Chen, Xiaosong Yu, Yongli Zhao, and Jie Zhang "Distance-adaptive routing, modulation, and spectrum assignment (DA-RMSA) algorithm based on signal overlap in elastic optical networks (EONs)", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 1104827 (14 February 2019); https://doi.org/10.1117/12.2522916

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