CONTROL PLANE FOR AN OPTICAL NETWORK FOR TRANSMITTING MULTI-CARRIER DATA BURSTS WITH DYNAMIC ADAPTATION OF LEARNING SEQUENCE

摘要

The invention relates to a system for transmitting data in an optical network comprising a plurality of source nodes and recipient nodes. A source node generates, in a spectral band that is associated with same, a multi-carrier optical data signal obtained through modulation of a source signal at a source wavelength and transmits same in the form of single-band data bursts that can be associated with separate source wavelengths. A single-band data burst comprises, in addition to useful data symbols (PL), a sequence of learning symbols (TS) made up of a plurality of learning symbols. A control unit, belonging to the control plane of the optical network, determines, for at least one of the source nodes, instants for transmitting single-band data bursts and source wavelengths to be used for transmitting said single-band data bursts, as a function of a time of flight of the data bursts between the source node and one of the recipient nodes, associated with the source wavelength. According to the invention, the control unit likewise determines a size of the sequence of learning symbols (TS) of the single-band data bursts.