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Cognitive, Heterogeneous and Reconfigurable Optical Networks: The CHRON Project

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Abstract

High degree of heterogeneity of future optical networks, stemming from provisioning of services with different quality-of-transmission requirements, and transmission links employing mixed modulation formats or switching techniques, will pose a challenge for the control and management of the network. The incorporation of cognitive techniques can help to optimize a network by employing mechanisms that can observe, act, learn and improve network performance, taking into account end-to-end goals. The EU project CHRON: Cognitive Heterogeneous Reconfigurable Optical Network proposes a strategy to efficiently control the network by implementing cognition. In this paper we present a survey of different techniques developed throughout the course of the project to apply cognition in future optical networks.

ENGINEERING OPTICS TELECOMMUNICATIONS NONLINEAR TRANSMISSION PERFORMANCE DIGITAL COHERENT RECEIVERS CHROMATIC DISPERSION OFDM SYSTEMS QUALITY EXPRESSIONS PROPAGATION ESTIMATOR Cognition cognitive networks energy consumption heterogeneous optical networks optical performance monitoring (OPM) cognitive radio modulation radio links telecommunication control Communication Networking and Broadcast Technologies Photonics and Electrooptics CHRON project cognitive optical networks Computer architecture EU project mixed modulation Modulation Monitoring network control network management Network topology Optical fiber networks quality-of-transmission requirements reconfigurable optical networks service provisioning switching techniques Topology transmission links heterogeneous opticalnetworks Energy utilization Optical communication Cognitive network Control and management Modulation formats Optical performance monitoring Reconfigurable optical network Switching techniques Quality control