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Optimized traffic profile for FlexGrid optical networks

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Abstract

This work is focused on studying the connections’ bandwidth distribution effects on the FlexGrid network performance. An accurate study of spectrum occupancy in heavy loaded FlexGrid optical networks is carried out. This analysis is useful to figure out which traffic profiles are more suitable for this kind of networks. Two different cases are considered with respect to the offered connections. In the elastic case, connections sizes can take any value from 1 to a maximum number of spectrum slots. In the multi-rate case, only three connections sizes are allowed. It is demonstrated that by generating the connections with some specific statistical properties, the network performance is improved. These properties are derived from the theoretical study of spectrum occupation in ideal conditions. The main contribution of this work is therefore the proposal of an Optimum traffic profile which allows to efficiently use the spectrum in FlexGrid optical networks. The gain obtained by generating the proposed traffic profile is evaluated by means of simulations at the link as well as at the whole network level.

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Acknowledgements

This work was supported by the open fund of State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, China (No. 2015GZKF03006), and Research Center of Optical Communications Engineering and Technology, Jiangsu Province (No. ZSF0201). This work has been partially supported by the Spanish MICINN through SINERGY Project (TEC2014-59995-R).

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Authors and Affiliations

  1. School of Opto-Electronic Engineering, Nanjing University of Posts and Telecommunications, 66 Xin Mofan Road, Nanjing, 210003, Jiangsu Province, People’s Republic of China

    Fengqing Liu

  2. Department of Signal Theory and Communications, Universitat Politècnica de Catalunya, UPC Campus Nord, c/Jordi Girona 1, 08034, Barcelona, Spain

    Jaume Comellas

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  1. Fengqing Liu
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  2. Jaume Comellas
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Correspondence to Jaume Comellas.

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Liu, F., Comellas, J. Optimized traffic profile for FlexGrid optical networks. Photon Netw Commun 34, 334–343 (2017). https://doi.org/10.1007/s11107-017-0701-4

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  • DOI: https://doi.org/10.1007/s11107-017-0701-4

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