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Open AccessArticle

Adaptive Equalization for Dispersion Mitigation in Multi-Channel Optical Communication Networks

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Faculty of Electrical Engineering, Iqra National University, Peshawar, Khyber Pakhtunkhwa 25000, Pakistan
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Faculty of Electrical Engineering, CECOS University, Peshawar, Khyber Pakhtunkhwa 25000, Pakistan
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Department of Electrical Engineering, City University of Science and Information Technology, Peshawar 25000, Pakistan
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Faculty of Electrical Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Swabi 23640, Pakistan
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Department of Electrical Engineering, Preston University, Kohat, Khyber Pakhtunkhwa 25000, Pakistan
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School of Electrical Engineering, University of Ulsan, Ulsan 44610, Korea
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Author to whom correspondence should be addressed.
Electronics 2019, 8(11), 1364; https://doi.org/10.3390/electronics8111364
Received: 16 October 2019 / Revised: 12 November 2019 / Accepted: 13 November 2019 / Published: 17 November 2019
(This article belongs to the Section Networks)
Optical communication networks (OCNs) provide promising and cost-effective support for the ultra-fast broadband solutions, thus enabling them to address the ever growing demands of telecommunication industry such as high capacity and end users’ data rate. OCNs are used in both wired and wireless access networks as they offer many advantages over conventional copper wire transmission such as low power consumption, low cost, ultra-high bandwidth, and high transmission rates. Channel effects caused by light propagation through the fiber limits the performance, hence the data rate of the overall transmission. To achieve the maximum performance gain in terms of transmission rate through the OCN, an optical downlink system is investigated in this paper using feed forward equalizer (FFE) along with decision feedback equalizer (DFE). The simulation results show that the proposed technique plays a key role in dispersion mitigation in multi-channel optical transmission to uphold multi-Gb/s transmission. Moreover, bit error rate (BER) and quality factor (Q-factor) below 10 5 and above 5, respectively, are achieved with electrical domain equalizers for the OCN in the presence of multiple distortion effects showing the effectiveness of the proposed adaptive equalization techniques. View Full-Text
Keywords: optical communication networks; feed forward equalizer; decision feedback equalizer; chromatic dispersion; polarization mode dispersion optical communication networks; feed forward equalizer; decision feedback equalizer; chromatic dispersion; polarization mode dispersion
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Ali, F.; Ahmad, S.; Muhammad, F.; Abbas, Z.H.; Habib, U.; Kim, S. Adaptive Equalization for Dispersion Mitigation in Multi-Channel Optical Communication Networks. Electronics 2019, 8, 1364.

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