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  • A two-objective optimization scheme for high-OSNR and low-power-consuming all-optical networks

    Author(s)
    Abedifar, Vahid
    Mirjalili, Seyed Mohammad
    Eshghi, Mohammad
    Griffith University Author(s)
    Mirjalili, Seyedali
    Year published
    2015
    Metadata
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    Abstract
    In all-optical networks the ASE noise of the utilized optical power amplifiers is a major impairment, making the OSNR to be the dominant parameter in QoS. In this paper, a two-objective optimization scheme using Multi-Objective Particle Swarm Optimization (MOPSO) is proposed to reach the maximum OSNR for all channels while the optical power consumed by EDFAs and lasers is minimized. Two scenarios are investigated: Scenario 1 and Scenario 2. The former scenario optimizes the gain values of a predefined number of EDFAs in physical links. The gain values may be different from each other. The latter scenario optimizes the gains ...
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    In all-optical networks the ASE noise of the utilized optical power amplifiers is a major impairment, making the OSNR to be the dominant parameter in QoS. In this paper, a two-objective optimization scheme using Multi-Objective Particle Swarm Optimization (MOPSO) is proposed to reach the maximum OSNR for all channels while the optical power consumed by EDFAs and lasers is minimized. Two scenarios are investigated: Scenario 1 and Scenario 2. The former scenario optimizes the gain values of a predefined number of EDFAs in physical links. The gain values may be different from each other. The latter scenario optimizes the gains value of EDFAs (which is supposed to be identical in each physical link) in addition to the number of EDFAs for each physical link. In both scenarios, the launch powers of the lasers are also taken into account during optimization process. Two novel encoding methods are proposed to uniquely represent the problem solutions. Two virtual demand sets are considered for evaluation of the performance of the proposed optimization scheme. The simulations results are described for both scenarios and both virtual demands.
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    Journal Title
    Optical Fiber Technology
    Volume
    21
    DOI
    https://doi.org/10.1016/j.yofte.2014.09.003
    Subject
    Atomic, molecular and optical physics
    Science & Technology
    Physical Sciences
    Engineering, Electrical & Electronic
    Optics
    Publication URI
    http://hdl.handle.net/10072/411885
    Collection
    • Journal articles

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