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Shaped Four-Dimensional Modulation Formats for Optical Fiber Communication Systems
[article]
2021
arXiv
pre-print
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We review the design of multidimensional modulations by maximizing generalized mutual information and compare the maximum transmission reach of recently introduced 4D formats. ...
A model-based optimization for nonlinear-tolerant 4D modulations is also discussed. ...
., “Increased reach of long-haul transmission using a constant-power 4D format designed using neural networks,” in
ECOC, (2020).
8. G. ...
arXiv:2112.12377v1
fatcat:mhfefs2phvh7ziz4q4gwsi5m6a
Fast and accurate waveform modeling of long-haul multi-channel optical fiber transmission using a hybrid model-data driven scheme
[article]
2022
arXiv
pre-print
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2022 pre-print arXiv:2201.05502v1 fatcat:fogohdkdgnetznshutneyuxwgmOther Versions
The total running time of FDD waveform modeling scheme for 41-channel 1040-km fiber transmission is only 3 minutes versus more than 2 hours using SSFM for each input condition, which achieves a 98% reduction ...
The modeling of optical wave propagation in optical fiber is a task of fast and accurate solving the nonlinear Schr\"odinger equation (NLSE), and can enable the optical system design, digital signal processing ...
The long-haul fiber transmission time increased linearly with increasing distance for both SSFM and NN because of the iterative transmissions in both cases. ...
arXiv:2201.05502v2
fatcat:5sgvtl6usnccraq5nhinknsjiu
A Review of Self-Coherent Optical Transceivers: Fundamental Issues, Recent Advances, and Research Directions
2021
Applied Sciences
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This paper reviews recent progress on different high-speed optical short- and medium-reach transmission systems. ...
Moreover, based on the growing increase in the dynamic environment and the heterogeneous nature of different applications and services to be supported by the systems, we discuss the reconfigurable and ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/app11167554
fatcat:fbijur7yjzgopi5i2r4ywzwxde
Mutual Information as a Figure of Merit for Optical Fiber Systems
[article]
2015
arXiv
pre-print
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In this paper, we analyze an optical fiber system by evaluating MI as the maximum achievable rate of transmission of such a system. ...
We thereby justify to use the MI estimation method to accurately estimate the MI of an optical fiber system. ...
Fig. 1 also provides a hint that a higher modulation than QPSK should be used for the considered long-haul link. Assume that the optical system operates at the optimal launch power of −1 dBm. ...
arXiv:1405.2029v2
fatcat:6fhk2j535bc2rgg4poblxlyxwm
Machine Learning Techniques to Mitigate Nonlinear Phase Noise in Moderate Baud Rate Optical Communication Systems
[chapter]
2019
Intelligent System and Computing [Working Title]
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The effect of NLPN in the constellation diagram consists of a shape distortion of symbols that increases the symbol error rate due to symbol overlapping when using a conventional demodulation grid. ...
Nonlinear phase noise (NLPN) is the most common impairment that degrades the performance of radio-over-fiber networks. ...
A special thanks to the Universidad Pedagógica y Tecnológica de Colombia (UPTC) for their financial support to encourage my doctoral studies by agreement 041. ...
doi:10.5772/intechopen.88871
fatcat:rpvsp6wixndo3b2phdasfpyaie
CubeSat Communications: Recent Advances and Future Challenges
[article]
2020
arXiv
pre-print
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Finally, we identify several future research directions for CubeSat communications, including Internet of space things, low-power long-range networks, and machine learning for CubeSat resource allocation ...
CubeSats further provide a complementary connectivity solution to the pervasive Internet of Things (IoT) networks, leading to a globally connected cyber-physical system. ...
Using a transmit power of 4 Watts and digital pulseinterval modulation, a data rate of 2 Mbps was achieved with BER = 10 −6 for a transmission range of 500 meters. ...
arXiv:1908.09501v2
fatcat:yc22n5bwsjbdjpgdcpfoyuhv4u
Heterogeneously Integrated ITO Plasmonic Mach-Zehnder Interferometric Modulator on SOI
[article]
2020
arXiv
pre-print
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2020 pre-print arXiv:2007.15457v1 fatcat:ixbw573qqfdz5evilbylsx4qhq
Following this design paradigm, here, we demonstrate a spectrally broadband, GHz-fast Mach-Zehnder interferometric modulator, exhibiting a high efficiency signified by a miniscule VpL of 95 Vum, deploying ...
photonic neural networks or applications in GHz-fast optical phased-arrays, for example. ...
To test the temporal response of these sub-l-compact ITO MZI modulators, the frequency response (S21) is obtained by generating a low power modulating signal (0 dBm) with a 50 GHz network analyzer; a bias-tee ...
arXiv:2007.15457v2
fatcat:osbj53rsqvcstjqigswhl7yz74
Proceedings of The International Research Education & Training Center
[article]
2021
Zenodo
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Proceedings of The International Research Education & Training Center ...
with a long extent, increases. ...
This paper aims to increase the accuracy of the measurements made with the halleffect sensor using the artificial neural network algorithm. ...
doi:10.5281/zenodo.5502124
fatcat:j5vvdb3j5nemvpo4splz4n7ziq
Defense Advanced Research Projects Agency (Darpa) Fiscal Year 2019 Budget Estimates
2018
Zenodo
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To enable in-theater, continuousanalysis and treatment of warfighters, this project seeks to explore diagnostic andtherapeutic approaches, including the use of bacterial predators as therapeuticsagainst ...
Theprogram uses information, computational modeling, and physical sciences todiscover properties of biological systems that cross multiple scales of biologicalarchitecture and function, from the molecular ...
Demonstrate a proof of concept flight demo using commercial components.FY 2019 Plans:-Design a custom high-power, high-efficiency, receiver architecture for mission-required beam transmission. ...
doi:10.5281/zenodo.1215599
fatcat:kxduvg6a5nflhf6iilkwnolobu
Toxicity Analysis and Cry Gene Profiling of Bacillus Thuringiensis Isolated from Western Ghats of Tamil Nadu State, India
2018
Proceedings of the Indian National Science Academy
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Computing as a discipline is a recent one even though the practice of using mechanical aids for calculation can have various dates based on the perspective of the reader like Blaise Pascal in 1600s, George ...
There are various evidences of calculation as an ancient activity [Tedre, 2014] that dates back to Babylonian days used for varieties of navigational, astronomical and other day-to-day needs. ...
Thus, there is a constant but reducing supply of bitcoins from the network. ...
doi:10.16943/ptinsa/2018/49413
fatcat:2w6rohpbava5zh6m26tsiz7qky
第57回年会予稿集
2019
Seibutsu Butsuri
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4 次元透過型電子顕微鏡：理論とシミュレーション
4-Dimensional Transmission Electron Microscopy: Theory and Simulation Kuniaki Nagayama (N-EM Labos LLC) We will report on 4D electron microscopy of a transmission type (4D-TEM ...
We have developed a pipeline for automatically identifying suitable holes using convolutional neural networks. ...
These results indicate the increase of irregular cells such as cell clusters in blood after malignant tumor formation were one potential biomarkers of metastasis progress. 3Pos200 アミロイド凝集阻害物質の自動スクリーニングシステム ...
doi:10.2142/biophys.59.s1
fatcat:rsudhlmaanetrhmdxjgsiyorme
Fast and accurate waveform modeling of long-haul multi-channel optical fiber transmission using a hybrid model-data driven scheme
[article]
2022
Preserved Fulltext
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Traditional modeling of fiber channels using the split-step Fourier method (SSFM) has long been regarded as challenging in long-haul wavelength division multiplexing (WDM) optical fiber communication systems ...
The modeling of optical wave propagation in optical fiber is a task of fast and accurate solving the nonlinear Schrödinger equation (NLSE), and can enable the research progress and system design of optical ...
The long-haul fiber transmission time increased linearly with increasing distance for both SSFM and NN because of the iterative transmissions in both cases. ...
doi:10.48550/arxiv.2201.05502
fatcat:bd5ueblf3fhkfpxw5pb5br3sfm
A Rapid Prototyping Environment for Wireless Communication Embedded Systems
2003
EURASIP Journal on Advances in Signal Processing
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., describes the design of a large-scale emulation engine and an application example from the field of low-power wireless devices. ...
The paper proves that real-time emulation of a low-power TDMA receiver is feasible at a clock speed of 25 MHz. ...
ACKNOWLEDGMENTS
ACKNOWLEDGMENT We would like to thank Aptix Corporation (San Jose, Calif, USA) for the technical support during the prototype implementation of our methodology using the Aptix system ...
doi:10.1155/s111086570330304x
fatcat:3ird7hyyzjeb5bmrqa6ztx7574
Modern Applied Science, Vol. 3, No. 3, March 2009, all in one file, Part B
2009
Modern Applied Science
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When combined with other standard features such as species composition and merchantable timber volume, it is possible to analyze the effect a road network design has on delivered wood costs. ...
This constraint represents a major impediment in use of specific areas, Vol. 3, No. 3 Modern Applied Science 84 which restrain the use of the area for road allocation. ...
, for granting the auther Post-Doctoral fellow ship tenable at Biochemical Toxicology Unit of the Department of Chemistry, Federal University of Santa Maria, Brasil. ...
doi:10.5539/mas.v3n3p0b
fatcat:p6ab3xx3lvhodfanzow5xp2lla
Obstacle Detection for Image-Guided Surface Water Navigation
2016
2016 13th Conference on Computer and Robot Vision (CRV)
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, a graphical interface that provides information using immersive AR graphics; and last, an indepth investigation and discussion of the problem and potential solutions from a design thinking perspective ...
was to employ an autobiographical design method. iii Sailing is the process of controlling various aspects of boat operation in order to produce propulsion by harnessing wind energy using sails. ...
ACKNOWLEDGEMENTS In a lifelong pursuit of learning, I am forever in debt to an increasingly large list of people including family, friends, colleagues and instructors. ...
doi:10.1109/crv.2016.34
dblp:conf/crv/SadhuAHWW16
fatcat:4m2m7lp22rfsxllvkjsibrh3va
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