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Publikācija: The Impact of Signal Regeneration on the DWDM System’s Power Efficiency using 10 Gbps NRZ-OOK

Publication Type Full-text conference paper published in other conference proceedings
Funding for basic activity EU Structural Funds
Defending: ,
Publication language English (en)
Title in original language The Impact of Signal Regeneration on the DWDM System’s Power Efficiency using 10 Gbps NRZ-OOK
Field of research 2. Engineering and technology
Sub-field of research 2.2 Electrical engineering, Electronic engineering, Information and communication engineering
Authors Deniss Pavlovs
Vjačeslavs Bobrovs
Ģirts Ivanovs
Pēteris Gavars
Keywords DWDM, Energy efficiency, Optical fiber networks, Phase shift keying, Power consumption, Power efficiency, Single-line rate, Spectral efficiency, Sub-band spacing, WDM networks
Abstract The matter of power consumption in the wired telecommunication networks has become a major challenge for researchers and designers due to the potential financial benefits and environmental issue. On the other hand the Information and Communication Technology (ICT) segment experiencing continuously increasing global Internet traffic due to the emergence and renewal of the bandwidth-intensive services and applications. The higher capacity of transmission system can be achieved by enchasing the spectral efficiency level, which in its turn, in the Wavelength Division Multiplexing (WDM) systems, is defined by frequency slots and data rates of transmission channels. However, on the grounds of cross-channel interference, decreasing of channel spacing adversely affects the transmission reach of signals, which leads to the higher power consumption due to increased number of signal regenerations. Therefore the following situation results into continuous assessment of tradeoffs between Power and Spectral efficiencies in the transmission systems. Following research aims to an examination of Single–Line–Rate (SLR) WDM systems based on 10 Gbps signals with nonreturn-to-zero on–off-keying (NRZ – OOK) modulation, which are commonly used at existing legacy networks. The focus of this study is transmission systems with the Forward Error Correction (FEC) and required Bit Error Rate (BER) level lower then 10-3. In order to observe relationship between system’s capacity and power consumption, authors estimate the power efficiency at different spectral efficiency stages, by means of modifications in the frequency slot, to wit from 12.5 GHz to 37.5 GHz. Calculations have been prepared for various signal transmission lengths. Additionally, the power ratio of 3R (reamplification, retiming, reshaping) is evaluated with the purpose to quantify the impact of signal regeneration procedure on the total power consumption of transmission system. The results are presented as functions of transmitted information amount, with the aim of providing flexible data for different system realizations.
DOI: 10.1109/PIERS.2017.8262268
Hyperlink: https://ieeexplore.ieee.org/document/8262268 
Reference Pavlovs, D., Bobrovs, V., Ivanovs, Ģ., Gavars, P. The Impact of Signal Regeneration on the DWDM System’s Power Efficiency using 10 Gbps NRZ-OOK. In: 2017 Progress in Electromagnetics Research Symposium - Spring (PIERS 2017): Proceedings, Russia, Saint Petersburg, 22-25 May, 2017. Piscataway: IEEE, 2017, pp.2990-2994. ISBN 978-1-5090-6270-6. e-ISBN 978-1-5090-6269-0. e-ISSN 1559-8985. Available from: doi:10.1109/PIERS.2017.8262268
ID 26730