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Comparison of Transmission Performances for CO-SCFDE and CO-OFDM Systems

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4 Author(s)
Juhao Li ; State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Peking Univ., Beijing, China ; Su Zhang ; Fan Zhang ; Zhangyuan Chen

Single-carrier (SC) and multicarrier (MC) transmissions have emerged as two competitive technologies for long-haul coherent optical fiber transmission systems. In this letter, we compare chromatic dispersion (CD) and nonlinearity tolerances for coherent optical SC frequency-domain-equalization and SC orthogonal frequency-division-multiplexing systems. We establish the simulation systems employing the same structures of transmitter and receiver, the same structure of frame, and almost the same frequency-domain equalization method except the inverse fast Fourier transform processing. Both CD tolerance and nonlinear transmission performance in single-channel and wavelength-division-multiplexing scenarios are investigated. The comparison can reveal the difference of SC and MC transmissions.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 14 )