Analytical Modeling for Performance Evaluation of ASE Noise-impaired Direct-detection Single-sideband Multi-band Optical OFDM Systems

摘要

An analytical model for performance evaluation of amplified spontaneous emission noise-impaired directdetection single-sideband multi-band (MB) optical orthogonal frequency division multiplexing (OFDM) systems is proposed. The bit error ratio (BER) is used as figure of merit for performance evaluation, and is obtained through an analytical relationship between the electrical signal-to-noise ratio (SNR) and the optical SNR. The effectiveness of the analytical model is verified through comparison of the BER estimates provided by the analytical model with the ones obtained using numerical simulation and the exhaustive Gaussian approach. Excellent agreement of the BER results is verified when distortion does not affect significantly the MB-OFDM signal performance.