The present invention employs a novel use of multiplexing and cross-connect architecture to improve energy efficiency in optical networks.
As internet traffic experiences continued growth and optical networks find increased use in handling this traffic, power consumption becomes an important consideration in network design. The technology utilized in this invention addresses issues related to power consumption, as well as spectral efficiency and signal corruption that influence the costs of operating an optical network.
Optical cross-connection nodes in telecommunication networks.
The present invention provides reduced power dissipation at the Optical Transport Network (OTN) layer by utilizing Digital Subcarrier Multiplexing (DSCM) technology executed on a DSCM add/drop multiplexer and cross-connect architectures. DSCM has advantages for wireless communications due to its high spectral efficiency and robustness against signal corruption.
Using optical network components with high efficiency and low power consumption requirements leads to reduced network operating costs and can potentially make use of renewable energy sources.
Compared to traditional Time-Division Multiplexing (TDM)-based electric switches (OTN/SONET/SDH), the present invention provides reduced power dissipation, spectral efficiency, and protection against signal corruption.