公开(公告)号：US20190109644A1

公开(公告)日：2019-04-11

申请号：US16152865

申请日：2018-10-05

Applicant: Xieon Networks S.a.r.l.

Inventor： Antonio EIRA ,  João Manuel FERREIRA PEDRO

IPC: H04B10/27 ,  H04B10/66 ,  H04L1/00

Abstract: A set of media channel (MCh) widths are determined to be used in an optical network. Based on the topology of the network, a first set of MCh widths are computed for tentative use in said optical network, said first set of MCh width defining a target spectral efficiency. A reduced set of MCh widths are generated from said first set of MCh widths by mapping each of the original MCh widths of said first set to a corresponding new MCh width, which is identical with or larger than the original MCh width. An optimization algorithm is used that penalizes MCh widths that are more likely to cause fragmentation problems in the spectrum, and penalizes a decrease in spectral width due to the mapping of an original MCh width of said first set to a new, larger width.