Patent · US Active

Physically-diverse routing in heterogeneous optical networks

US8515280B1 · kind B1 · utility

11Cited by

0References

23Claims

0Family size

Assignee

AT&T Intellectual Property I, L.P. · US

Inventors

Guangzhi Li · Madison, US
Angela Chiu · Holmdel, US
Chris Dailey · Matthews, US
Robert Duncan Doverspike · Tinton Falls, US
Monica Naukam Gerhardstein · Troy, US
Dongmei Wang · Madison, US
Dahai Xu · Livingston, US

Key dates

Filing date	Dec 13, 2010
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Aug 7, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04J14/0268
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Systems and methods are described that provide a two-step, physically-diverse optical routing. A diverse routing is formulated using Integer Linear Programming (ILP) to find feasible routes having a minimum estimated cost, and post-processing the feasible routes on an auxiliary cost graph to optimize regenerator and terminal Optical Transponder (OT) placement and wavelength assignment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.