The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 31, 2018

Filed:

Mar. 14, 2017
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Xi Wang, Murphy, TX (US);

Inwoong Kim, Allen, TX (US);

Qiong Zhang, Plano, TX (US);

Paparao Palacharla, Richardson, TX (US);

Tadashi Ikeuchi, Plano, TX (US);

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04B 10/079 (2013.01); H04B 10/27 (2013.01); H04B 10/572 (2013.01);
U.S. Cl.
CPC ...
H04B 10/0795 (2013.01); H04B 10/27 (2013.01); H04B 10/572 (2013.01); H04J 14/0227 (2013.01); H04J 14/0257 (2013.01); H04J 14/0263 (2013.01); H04J 14/0271 (2013.01);
Abstract

Methods and systems for determining optical network utilization efficiency include generating a random demand set and calculating a demand fill ratio (DFR) based on the random demand set. The random demand set includes network demands for a given optical network topology that provide 100% of the wavelength slots in the optical network topology. The DFR may be calculated using different wavelength assignment algorithms, such as a first fit wavelength assignment algorithm, from the randomly generated demands in the random demand set. The DFR may be calculated without and with wavelength conversion nodes.


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