Fast-OFDM SMF

1. Presented
Adel Aldalbahi
Department of Engineering King Faisal University
Al-Ahsa, Saudi Arabia
Numerical Analysis of Fast-
OFDM in SMF-Based IM/DD Link

2. II- System description
IV- Results and discussion
I- Problem
Plan
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3. • Optical system suffer from :
• The chromatic dispersion(CD).
• Fiber nonlinearity (Kerr effect ).
• High cost of classical solutions :
• Optical Filter.
• DCF (Dispersion Compensation Fiber).
• Solution: DSP for chromatic dispersion compensation and nolinearity compensation, OFDM
• In this work, we propose a waveform to enhance the efficiency of spectrab bandwidh of the OFDM
system
•
Problem
Probelm
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4. Conceptual diagram of DML-based IM/DD OFDM/FOFDM
transmission system
Thèse de Doctorat
System description
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5. BER performance as a function of OSNR after 80 km and
100 km transmission at a fiber launch power of -6 dBm.
Thèse de Doctorat
Results and discussion
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6. Q-factor performance as a function of the fiber launch power
for M-ASK-FOFDM and 16-QAM FOFDM after a 80 km and 20 km
Thèse de Doctorat
I. Activités de recherche
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7. BER curves versus transmission distance
Thèse de Doctorat
Results and discussion
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8. Conclusion
•Numerical setup of optical Fast-OFDM waveform is developed based on
SSMF.
•FOFDM using real-valued IDCT/DCT was evaluated over SSMF.
•performance in terms of Bit Error Rate over transmission distance up to
55 km while maintaining the same spectral efficiency as OFDM.
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9. Thank you for your
attention
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