This invention relates to the field of communication technology, specifically to an optical tag switching
system and method based on novel code shift
keying (CPS) tag
overlay. The
system includes: a CPS
signal loading module for loading a CPS tag
signal onto a
clock signal to generate a tag
clock signal, and outputting the tag
clock signal to a modulation module; a
payload signal loading module for generating a
payload signal and outputting the
payload signal to the modulation module; a modulation module for overlaying the tag
clock signal output by the CPS signal loading module onto the payload signal output by the payload signal loading module, using the overlaid
optical packet signal to modulate the optical carrier, generating a combined signal, and outputting the combined signal; and a
demodulation module for demodulating the combined signal output by the modulation module to recover the CPS tag signal and the payload signal. The beneficial technical effects of this invention include: improving the coding efficiency during tag
overlay in optical tag switching.