SUBCHANNEL SECURITY AT THE OPTICAL LAYER

Title:

SUBCHANNEL SECURITY AT THE OPTICAL LAYER

Document Type and Number:

WIPO Patent Application WO/2011/103596

Kind Code:

A3

Abstract:

The present invention includes various novel techniques, apparatus, and systems for optical WDM communications that involve dynamically modifying certain aspects of the WDM transmission (and corresponding receive) process at the optical (physical) layer to significantly enhance data/network security. These various dynamic modifications can be employed individually or in combination to provide even greater security depending upon the desired application and design tradeoffs. WDM transmission steps typically include encoding the client signals, mapping them to one or more subchannels within or across ITU channels, modulating them onto subcarrier frequencies, and multiplexing them together for optical transmission. By dynamically modifying one or more of these processing steps over time (in addition to any encryption of the underlying client signals), the current invention provides additional security at the physical (optical) layer of an optical network and thus greatly enhances overall network security.

Inventors:

VORUGANTI PAVAN (US)
MAY KARL (US)

Application Number:

PCT/US2011/025767

Publication Date:

November 24, 2011

Filing Date:

February 22, 2011

Export Citation:

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Assignee:

VELLO SYSTEMS INC (CA)
VORUGANTI PAVAN (US)
MAY KARL (US)

International Classes:

H04B10/2581; H04L9/00

Domestic Patent References:

WO2006019369A2	2006-02-23
WO2001093480A1	2001-12-06

Foreign References:

US7272319B1	2007-09-18
US20080175590A1	2008-07-24

Other References: