Efficient T-OOFDM System to Mitigate the Dispersion of Long-Haul Optical Fiber Channel at WANs
Article Sidebar
Main Article Content
Abstract
Due to its attractive features, the utilization of fiber optics as a transmission medium with various applications is increased rapidly. In despite, when signals are transmitted with high data rates through ultra-long haul distances of single-mode fiber (SMF), which is usually used at wide area networks (WANs), the nonlinear dispersion of signals is raised. This phenomenon leads digital pulses to interfere with the adjacent pulses. In this paper, an optical orthogonal frequency division multiplexing based T-transform (T-OOFDM) system is proposed to mitigate the effect of fiber dispersion significantly and reduce the peak-to-average power ratio (PAPR) of the transmitted signal when compared with conventional optical OFDM (OOFDM) system. Simulations results confirmed by the analytical analysis demonstrated that the detrimental effects arising from fiber channel dispersion on the subcarrier orthogonality of the transmitted signals can be efficiently minimized by using T-OOFDM system. Moreover, the peak of the transmitted signal will be considerably reduced whilst preserving the average power of signals.
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
THIS IS AN OPEN ACCESS ARTICLE UNDER THE CC BY LICENSE http://creativecommons.org/licenses/by/4.0/
Plaudit
References
Agrawal GP. Fiber-optic communications systems.
rd ed. USA: John Wiley & Sons Inc.; 2002.
Shieh W. PMD-supported coherent optical OFDM
systems. IEEE Photonics Technology Letters 2007;
(3): 134-136.
Zhu C, Tran A, Do C. Digital signal processing for training-aided coherent optical single-carrier frequency-domain equalization systems. Journal of Lightwave Technology 2014; 32 (24): 4712-4722. DOI: https://doi.org/10.1109/JLT.2014.2364078
Moreolo MS, Muoz R, Junyent G. Novel power efficient optical OFDM based on Hartley transform for intensity-modulated direct-detection systems. Journal of Lightwave Technology 2010; 28 (5): 798-805. [5] Jansen SL, Morita I, Takeda N, Tanaka H. 20-Gb/s OFDM transmission over 4160 km SSMF enabled by RF-pilot tone phase noise compensation. Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference. 2007, March 25-29; California, USA; pp. 9-16. DOI: https://doi.org/10.1109/JLT.2010.2040580
Tang JM, Shore KA. 30-Gb/s transmission over 40-km directly modulated DFB-laser-based single-mode-fiber links without optical amplification and dispersion compensation. Journal of Lightwave Technology 2006; 24 (6): 2318-2327. DOI: https://doi.org/10.1109/JLT.2006.874557
Andrews JG, Ghosh A, Muhamed R. Fundamentals of WiMAX, understanding broadband wireless networking. USA: Prentice Hall; 2007.
Hanzo L, Munster M, Choi BJ, Keller T. OFDM and MC-CDMA for broadband multiuser communic-ations WLANs and broadcasting. USA: John Wiley & Sons Inc.; 2003. DOI: https://doi.org/10.1002/9780470861813
Ibrahim SK, Zhao J, Rafique D, Dowd J, Ellis AD. Demonstration of “world-first experimental optical
fast OFDM system at 7.174 Gbit/s and 14.348 Gbit/s. 36th European Conference and Exhibition on Optical Communication. 2010, September 19-23; Torino, Italy.
Lei C, Chen H, Chen M, Xie S. A 10 Gb/s DFT based fast optical OFDM scheme with double spectral efficiency. CLEO-Laser Science to Photonic Applications. 2011, May 1-6; Baltimore, MD, USA. DOI: https://doi.org/10.1364/CLEO_AT.2011.JWA123
Giacoumidis E, Tomkos I, Tang JM. A performance of optical fast-OFDM in MMF-based links. Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference. 2011, March 6-10; Los Angeles, USA; pp.17.23. DOI: https://doi.org/10.1364/OFC.2011.OWU3
Ahmed MS, Boussakta S, Sharif B, Tsimenidis CC. OFDM based on low complexity transform to increase multipath resilience and reduce PAPR. IEEE Transaction on Signal Processing 2011; 59 (12): 5994-6007. DOI: https://doi.org/10.1109/TSP.2011.2166551
[13] Ahmed MS, Boussakta S, Sharif B, Tsimenidis CC. OFDM based new transform with BER performance improvement across multipath transmission. IEEE International Conference on Communication. 2010, May 23-27; Cape Town, South Africa; pp. 1-5. DOI: https://doi.org/10.1109/ICC.2010.5502327
Boussakta S, Holt AG. Fast algorithm for calculation of both Walsh-Hadamard and Fourier transforms (FWFTs). IEE Electronics Letters 1989; 25 (20):1352-1354. DOI: https://doi.org/10.1049/el:19890903