Dynamic Routing, Modulation Format, and Spectrum Assignment to Improve Efficiency in Elastic Optical Networks 


Vol. 43,  No. 11, pp. 1862-1869, Nov.  2018
10.7840/kics.2018.43.11.1862


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  Abstract

The elastic optical network(EON) based on the optical orthogonal frequency-division multiplexing technology has been studied as a promising solution with large transport capacity and bandwidth flexibility for next-generation optical networks. In EON, setting up and tearing down of non-uniform bandwidth requests in the optical path may result in spectrum fragmentation. The spectrum fragmentation reduces the spectrum utilization and increases the blocking probability. In this paper, we propose a routing, modulation format and spectrum assignment algorithm to reduce fragmentation in EON. We define the spectrum block cost function based on the state of slot and holding time to determine spectrum block for the request. Also, the proposed algorithm uses the different modulation formats according to transmission distance. The performance of proposed algorithm is evaluated in terms of blocking probability and spectrum utilization.

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  Cite this article

[IEEE Style]

K. Lee and Y. Kim, "Dynamic Routing, Modulation Format, and Spectrum Assignment to Improve Efficiency in Elastic Optical Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 11, pp. 1862-1869, 2018. DOI: 10.7840/kics.2018.43.11.1862.

[ACM Style]

Ki-Beom Lee and Young-Chon Kim. 2018. Dynamic Routing, Modulation Format, and Spectrum Assignment to Improve Efficiency in Elastic Optical Networks. The Journal of Korean Institute of Communications and Information Sciences, 43, 11, (2018), 1862-1869. DOI: 10.7840/kics.2018.43.11.1862.

[KICS Style]

Ki-Beom Lee and Young-Chon Kim, "Dynamic Routing, Modulation Format, and Spectrum Assignment to Improve Efficiency in Elastic Optical Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 43, no. 11, pp. 1862-1869, 11. 2018. (https://doi.org/10.7840/kics.2018.43.11.1862)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880