US 12,035,081 B1
Route and wavelength assignment method and device based on all-optical wavelength conversion
Gangxiang Shen, Suzhou (CN); and Xinxin Bu, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Appl. No. 17/912,253
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
PCT Filed Sep. 24, 2021, PCT No. PCT/CN2021/120148
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2023/029127, PCT Pub. Date Mar. 9, 2023.
Claims priority of application No. 202111027199.3 (CN), filed on Sep. 2, 2021.
Int. Cl. H04Q 11/00 (2006.01); H04B 10/50 (2013.01)
CPC H04Q 11/0005 (2013.01) [H04B 10/506 (2013.01); H04Q 11/0067 (2013.01); H04Q 2011/0011 (2013.01); H04Q 2011/0084 (2013.01); H04Q 2011/0086 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A route and wavelength assignment method based on all-optical wavelength conversion, comprising steps of:
S1: introducing an all-optical wavelength converter in a network;
S2: placing a corresponding number of all-optical wavelength converters in a network node according to the principle of sparse wavelength converter placement;
S3: establishing an optical channel for a service, wherein the establishing an optical channel includes steps of:
S31: establishing an OSNR awareness route and wavelength assignment algorithm model that includes transmission loss, ASE noise and OSNR penalty; and
S32: calculating the OSNR of various routes by using the OSNR awareness route and wavelength assignment algorithm model and establishing the optical channel using the route with the highest OSNR and accomplishing wavelength assignment.