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Distance-adaptive routing and spectrum assignment in OFDM-based flexible transparent optical networks

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Abstract

Orthogonal frequency division multiplexing (OFDM) technology has been recently gaining increasing attention in flexible optical networks due to its significant spectrum efficiency, flexibility, and superior tolerance against impairments. In this paper, we put forward a novel distance-adaptive routing and spectrum assignment algorithm to select the proper modulation format dynamically based on OFDM according to the transmission reach, thereby effectively improving the spectrum utilization. The presented simulation results show that our proposed algorithm achieves significantly improved spectrum efficiency.

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Acknowledgments

This research was jointly supported by the Program for New Century Excellent Talents in University (NCET-13-0770), by the scientific research projects of the Department of Education of Hebei Province (ZH2012020, QN20131064), by the Natural Science Foundation of Hebei Province (F2014402075), and by the National Natural Science Foundation of China (61304131).

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Authors and Affiliations

  1. School of Information and Electric Engineering, Hebei University of Engineering, Handan, 056038, China

    Jijun Zhao, Qiuyan Yao, Xin Liu & Wei Li

  2. Optical Zeitgeist Laboratory, INRS, Montreal, QC, H5A1K6, Canada

    Martin Maier

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  1. Jijun Zhao
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  2. Qiuyan Yao
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  3. Xin Liu
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  4. Wei Li
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  5. Martin Maier
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Correspondence to Xin Liu.

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Zhao, J., Yao, Q., Liu, X. et al. Distance-adaptive routing and spectrum assignment in OFDM-based flexible transparent optical networks. Photon Netw Commun 27, 119–127 (2014). https://doi.org/10.1007/s11107-014-0432-8

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  • DOI: https://doi.org/10.1007/s11107-014-0432-8

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