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  • Received: Jan. 17, 2014

    Accepted: Apr. 4, 2014

    Posted: Jun. 26, 2014

    Published Online: Jun. 26, 2014

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    DOI: 10.3788/col201412.070601

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    Yongli Zhao, Jie Zhang. Blocking probability analysis model for flexible spectrum optical networks[J]. Chinese Optics Letters, 2014, 12(7): 070601

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Chinese Optics Letters, Vol. 12, Issue 7, 070601 (2014)

Blocking probability analysis model for flexible spectrum optical networks

Yongli Zhaoand Jie Zhang

Author Affiliations

    Abstract

    Compared to the traditional wavelength division multiplexing (WDM) optical networks with rigid and coarse granularities, flexible spectrum optical networks have high spectrum efficiency, which can support the service with various bandwidth requirements, such as sub and super channel. Among all network performance parameters, blocking probability is an important parameter for the performance evaluation and network planning in circuit-based optical networks including flexible spectrum optical networks. We propose an analytical method of blocking probability computation for flexible spectrum optical networks in this letter through mathematical analysis and theoretical derivation. Two blocking probability models are built respectively based on whether considering spectrum consecutiveness or not. Numerical results validate our proposed blocking probability models under different link capacity and traffic loads.

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