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Two-stage bandwidth-allocated algorithm for multi-subsystem-based VPON in metro-access optical network

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Abstract

In the metro-access optical network, a two-stage bandwidth-allocated algorithm is proposed for the multi-subsystem-based virtual passive optical network (VPON) that can achieve the syncretism of multiple systems such as time division multiplexing-PON, wavelength division multiplexing-PON and orthogonal frequency division multiplexing-PON. In this paper, the bandwidth is allocated in two stages. The first-stage allocation is designed to improve the admission probability of new VPONs by allocating bandwidth to all new VPONs followed by original VPONs. Meanwhile, to avoid the bandwidth being monopolized by the new VPONs, the bandwidth allocated to each VPON is no more than its guaranteed bandwidth. Therefore, the whole fairness can be guaranteed. The second-stage allocation is used to promote the bandwidth-utilized ratio by assigning the remaining bandwidth to VPONs whose demand is not fully met in the first stage. With the two-stage allocation, not only the admission probability can be improved, but also the bandwidth-utilized ratio can be promoted. MATLAB is used to evaluate the performance of proposed algorithm according to admission probability of new VPONs and bandwidth-utilized ratio.

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Acknowledgements

This work is supported by Programs of Natural Science Foundation of China (Nos. 61132004, 61275073 and 61420106011), Shanghai Science and Technology Development Funds (Nos. 15511105400, 15530500600 and 14511100100) and Shanghai Leading Academic Discipline Project (No. S30108).

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  1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shangda Road No. 99, Shanghai, 200444, China

    Xingdi Wang, Chaoqin Gan & Weidong Xia

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  1. Xingdi Wang
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  2. Chaoqin Gan
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  3. Weidong Xia
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Correspondence to Chaoqin Gan.

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Wang, X., Gan, C. & Xia, W. Two-stage bandwidth-allocated algorithm for multi-subsystem-based VPON in metro-access optical network. Photon Netw Commun 36, 201–209 (2018). https://doi.org/10.1007/s11107-018-0789-1

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  • DOI: https://doi.org/10.1007/s11107-018-0789-1

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