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Traffic grooming and clique partitioning‐based spectrum assignment in elastic optical networks
Author(s) -
Datta Choudhury Panchali,
Agarwal Neha,
De Tanmay
Publication year - 2020
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.4333
Subject(s) - computer science , partition (number theory) , traffic grooming , multicast , fragmentation (computing) , blocking (statistics) , frequency allocation , computer network , clique , distributed computing , wavelength division multiplexing , mathematics , wavelength , physics , combinatorics , optoelectronics , operating system
Summary We adopt a fragmentation reducing policy for spectrum assignment and incorporate it with multicast traffic grooming in EON. To reduce fragmentation, the spectrum is partitioned based on the clique partitioning approach and spectral slots are assigned to traffic demands depending on which partition they belong. Simulation results predict that the proposed approach has better spectrum slot utilization compared to the state‐of‐the‐art non‐partitioning approach and the proposed approach reduces fragmentation, and also has less blocking ratio compared to the state‐of‐the‐art partitioning approach.