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2024
A Hybrid Convolutional Neural Network for Classification and SNR Estimation of QAM Modulation Formats
Herrera, J., Núñez Kasaneva, J., Pereda, N., Alvarado, A. & Saavedra, G. (Corresponding author), 14 Nov 2024, Optica Latin America Optics and Photonics Conference (LAOP) 2024. Optica Publishing Group, 2 p. Tu5C.3Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
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A Phase Recovery-Aware Algorithm for Kernel Estimation of the Manakov Equation
Barreiro, A., Liga, G. & Alvarado, A., 1 Jan 2024, 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM). Institute of Electrical and Electronics Engineers, 5 p. 10369745Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile2 Citations (Scopus)27 Downloads (Pure) -
A Simplified FSO Channel Model with Weak Turbulence and Pointing Errors
Álvarez Roa, C., Gültekin, Y. C., Wu, K., Korevaar, C. W. & Alvarado, A., 2 Sept 2024, 24th International Conference on Transparent Optical Networks, ICTON 2024. Prudenzano, F. & Marciniak, M. (eds.). Institute of Electrical and Electronics Engineers, 6 p. 10647275Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile16 Downloads (Pure) -
Low-Complexity Architecture for Soft-Output Trellis-Based Detection in High-Speed Data Center Applications
Wu, K., Liga, G., Riani, J. & Alvarado, A., 28 Mar 2024, 49th European Conference on Optical Communications, ECOC 2023. Institution of Engineering and Technology, p. 708-711 4 p. 10484655Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile12 Downloads (Pure) -
On the Performance of Multidimensional Constellation Shaping for Linear and Nonlinear Optical Fiber Channel
Chen, B. (Corresponding author), Liang, Z., Li, S., Lei, Y., Liga, G. & Alvarado, A., 28 Mar 2024, 49th European Conference on Optical Communications, ECOC 2023. Institution of Engineering and Technology, p. 1555-1558 4 p. 10484713. (IET Conference Proceedings; vol. 2023, no. 34).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile1 Citation (Scopus)23 Downloads (Pure) -
On the Robustness of Deep Learning-aided Symbol Detectors to Varying Conditions and Imperfect Channel Knowledge
Chen, C.-H., Karanov, B., van Houtum, W. J., Wu, Y., Young, A. & Alvarado, A., 3 Jul 2024, 2024 IEEE Wireless Communications and Networking Conference, WCNC 2024. Institute of Electrical and Electronics Engineers, 6 p. 10570860Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile33 Downloads (Pure) -
2023
Band-ESS: Streaming Enumerative Coding with Applications to Probabilistic Shaping
Gültekin, Y. C., Willems, F. M. J. & Alvarado, A., 11 Jan 2023, GLOBECOM 2022 - 2022 IEEE Global Communications Conference. Institute of Electrical and Electronics Engineers, p. 3223-3228 6 p. 10000599Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open Access2 Citations (Scopus)2 Downloads (Pure) -
Geometric Constellation Shaping in Elastic Optical Networks: Performance Analysis on Resource Allocation
Christiansen, Y., Zitkovich, M., Borquez-Paredes, D., Beghelli, A., Alvarado, A. & Saavedra, G., 2023, Proceedings of the 2023 International Conference on Optical Network Design and Modeling, ONDM 2023. Gomes, T., Larrabeiti-Lopez, D., Mas-Machuca, C., Valcarenghi, L., Jorge, L. & Melo, P. (eds.). Institute of Electrical and Electronics Engineers, p. 1-3 3 p. 10144852Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
1 Citation (Scopus) -
2022
4D Geometric Shell Shaping with Applications to 400ZR
Goossens, S., Gültekin, Y. C., Vassilieva, O., Kim, I., Palacharla, P., Okonkwo, C. & Alvarado, A., 24 Jul 2022, Signal Processing in Photonic Communications, SPPCom 2022. Optica Publishing Group, 2 p. SpM2I.1Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile70 Downloads (Pure) -
A Data-driven optimization of First-order Regular Perturbation Coefficients for Fiber Nonlinearities
Barreiro, A., Liga, G. & Alvarado, A., 14 Dec 2022, 2022 IEEE Photonics Conference, IPC 2022 - Proceedings. Institute of Electrical and Electronics Engineers, p. 1-2 2 p. 9975602Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile3 Citations (Scopus)53 Downloads (Pure) -
Analytical SNR Prediction in Long-Haul Optical Transmission using General Dual-Polarization 4D Formats
Liang, Z., Chen, B., Lei, Y., Liga, G. & Alvarado, A., 2022, 2022 European Conference on Optical Communication, ECOC 2022. Institute of Electrical and Electronics Engineers, p. 1-4 4 p. 9979534Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile3 Citations (Scopus)43 Downloads (Pure) -
Capacity Bounds for Optical WDM Channels with Peak Power Constraints
Ramachandran, V., Liga, G., Barreiro, A. & Alvarado, A., Jul 2022, Signal Processing in Photonic Communications. Optica Publishing Group, 2 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic
Open AccessFile48 Downloads (Pure) -
Capacity Region Bounds for K-User Optical WDM Channels with Peak Power Constraints
Ramachandran, V., Liga, G., Barreiro, A. & Alvarado, A., 13 Apr 2022, 2022 Optical Fiber Communications Conference and Exhibition (OFC). Institute of Electrical and Electronics Engineers, 3 p. 9748547Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
3 Downloads (Pure) -
DFE State-Tracking Demapper for Soft-Input FEC in 800G Data Center Interconnects
Wu, K., Liga, G., Lee, J., Paulissen, L., Riani, J. & Alvarado, A., 20 Dec 2022, European Conference and Exhibition on Optical Communication 2022. Institute of Electrical and Electronics Engineers, 4 p. 9979553Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
File103 Downloads (Pure) -
Dispersion Compensation for Phase-Coded FMCW Radars
Lampel, F., Alvarado, A. & Willems, F. M. J., 4 Oct 2022, 2022 23rd International Radar Symposium, IRS 2022. Institute of Electrical and Electronics Engineers, p. 36-41 6 p. 9905055Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
2 Citations (Scopus) -
Hybrid Geometric and Probabilistic Shaping; Is It Really Necessary?
Oliari, V., Karanov, B., Goossens, S., Liga, G., Vassilieva, O., Kim, I., Palacharla, P., Okonkwo, C. & Alvarado, A., 2022, Signal Processing in Photonic Communications, SPPCom 2022. Optica Publishing Group, p. 1-2 2 p. SpTu1J.4Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
2 Citations (Scopus)2 Downloads (Pure) -
Log-CCDM: Distribution Matching via Multiplication-free Arithmetic Coding
Gültekin, Y. C., Willems, F. M. J. & Alvarado, A., 3 Aug 2022, 2022 IEEE International Symposium on Information Theory (ISIT). Institute of Electrical and Electronics Engineers, p. 55-60 6 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile173 Downloads (Pure) -
Mitigating Nonlinear Interference by Limiting Energy Variations in Sphere Shaping
Gültekin, Y. C., Alvarado, A., Vassilieva, O., Kim, I., Palacharla, P., Okonkwo, C. M. & Willems, F. M. J., 13 Apr 2022, 2022 Optical Fiber Communication Conference (OFC). Institute of Electrical and Electronics Engineers, 3 p. 9748613Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open Access -
Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel
Liga, G., Chen, B. & Alvarado, A., 2022, Optical Fiber Communication Conference, OFC 2022. Optica Publishing Group, Th1H.3Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
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On Optimum Enumerative Sphere Shaping Blocklength at Different Symbol Rates for the Nonlinear Fiber Channel
Gültekin, Y. C., Vassilieva, O., Kim, I., Palacharla, P., Okonkwo, C. & Alvarado, A., 17 Aug 2022, 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC). Institute of Electrical and Electronics Engineers, 3 p. 9849911Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile2 Citations (Scopus)50 Downloads (Pure) -
On OTFS using the Discrete Zak Transform
Lampel, F., Alvarado, A. & Willems, F. M. J., 16 May 2022, 2022 IEEE International Conference on Communications Workshops (ICC Workshops). Institute of Electrical and Electronics Engineers, p. 729-734 6 p. 9814589Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile31 Citations (Scopus)616 Downloads (Pure) -
Shaped Four-Dimensional Modulation Formats for Optical Fiber Communication Systems
Chen, B., Liga, G., Lei, Y., Ling, W., Huan, Z., Xue, X. & Alvarado, A., 13 Apr 2022, 2022 Optical Fiber Communications Conference and Exhibition, OFC 2022 - Proceedings. Institute of Electrical and Electronics Engineers, 3 p. 9748343Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
5 Citations (Scopus)3 Downloads (Pure) -
2021
Challenges in Coding, DSP and Parallel Operation of Quantum Key Distribution and Coherent Data Transmission
Eriksson, T. A., Luís, R. S., Rademacher, G., Puttnam, B. J., Gumüş, K., Schmalen, L., Alvarado, A., Furukawa, H., Wada, N., Hirano, T., Sasaki, M. & Takeoka, M., 4 Feb 2021, 2020 European Conference on Optical Communications, ECOC 2020. Institute of Electrical and Electronics Engineers, 4 p. 9333170Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
2 Citations (Scopus) -
Distance-Agnostic Auto-Encoders for Short Reach Fiber Communications
Karanov, B., Schmalen, L. & Alvarado, A., 26 Jul 2021, 2021 Optical Fiber Communications Conference and Exhibition, OFC 2021 - Proceedings. Institute of Electrical and Electronics Engineers, 3 p. 9489838Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
File9 Citations (Scopus)113 Downloads (Pure) -
End-to-End Learning in Optical Fiber Communications: Experimental Demonstration and Future Trends
Karanov, B., Oliari, V., Chagnon, M., Liga, G., Alvarado, A., Aref, V., Lavery, D., Bayvel, P. & Schmalen, L., 4 Feb 2021, 2020 European Conference on Optical Communications, ECOC 2020. Institute of Electrical and Electronics Engineers, 9333265Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile10 Citations (Scopus)267 Downloads (Pure) -
Exponentially-Weighted Energy Dispersion Index for the Nonlinear Interference Analysis of Finite-Blocklength Shaping
Wu, K., Liga, G., Gültekin, Y. C. & Alvarado, A., 22 Nov 2021, 2021 European Conference on Optical Communication (ECOC). Institute of Electrical and Electronics Engineers, 4 p. 9606009Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
7 Citations (Scopus) -
Improved Bit-mappings for IEEE 802.11 LDPC Codes with Applications to Amplitude Shaping
Gültekin, Y. C., Alvarado, A. & Willems, F. M. J., 21 May 2021, Proceedings of the 2021 Symposium on Information Theory and Signal Processing in the Benelux. Eindhoven: Technische Universiteit Eindhoven, p. 115-117 3 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile42 Downloads (Pure) -
Logarithmic Perturbation Models in the Weak-Dispersion Regime with Applications to Passive Optical Networks
Oliari, V., Agrell, E. & Alvarado, A., 4 Feb 2021, 2020 European Conference on Optical Communications, ECOC 2020. 4 p. 9333146Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
2 Citations (Scopus)1 Downloads (Pure) -
Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats
Chen, B., Okonkwo, C. & Alvarado, A., Feb 2021, 2020 European Conference on Optical Communications, ECOC 2020. Institute of Electrical and Electronics Engineers, 4 p. 9333243Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
3 Citations (Scopus) -
On Cloud Radio Access Networks With Cascade Oblivious Relaying
Ensan, M., Joudeh, H., Alvarado, A., Gustavsson, U. & Willems, F. M. J., 23 Nov 2021, 2021 IEEE Information Theory Workshop, ITW 2021 - Proceedings. Institute of Electrical and Electronics Engineers, p. 1-6 6 p. 9611433Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile2 Citations (Scopus)146 Downloads (Pure) -
On Kurtosis-limited Enumerative Sphere Shaping for Reach Increase in Single-span Systems
Gültekin, Y. C., Alvarado, A., Vassilieva, O., Kim, I., Palacharla, P., Okonkwo, C. M. & Willems, F. M. J., 22 Nov 2021, 2021 European Conference on Optical Communication, ECOC 2021. Institute of Electrical and Electronics Engineers, 4 p. 9605938Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open Access4 Citations (Scopus)1 Downloads (Pure) -
On Parameter Optimization and Reach Enhancement for the Improved Soft-Aided Staircase Decoder
Lei, Y., Chen, B., Liga, G. & Alvarado, A., 13 Nov 2021, 2021 11th International Symposium on Topics in Coding (ISTC). Institute of Electrical and Electronics Engineers, 5 p. 9594167Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
2 Citations (Scopus) -
Peak Sidelobe Level Based Waveform Optimization for OFDM Joint Radar-Communications
Keskin, M. F., Tigrek, R. F., Aydogdu, C., Lampel, F., Wymeersch, H., Alvarado, A. & Willems, F. M. J., 10 Jan 2021, 2020 17th European Radar Conference (EuRAD). Institute of Electrical and Electronics Engineers, p. 1-4 4 p. 9337375Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
12 Citations (Scopus) -
Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier
Keskin, M. F., Wymeersch, H. & Alvarado, A., Jun 2021, 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings. Institute of Electrical and Electronics Engineers, 6 p. 9473534Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
30 Citations (Scopus) -
Real-time, Software-defined, Multi-modulation Format, GPU-based Receiver
van der Heide, S., Luis, R. S., Goossens, S., Puttnam, B. J., Rademacher, G., Koonen, T., Shinada, S., Awaji, Y., Alvarado, A., Furukawa, H. & Okonkwo, C., 2021, 2021 Asia Communications and Photonics Conference, ACP 2021 - Proceedings. Optica Publishing Group, M4H.1Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
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2020
Analysis and optimisation of distribution matching for the nonlinear fibre channel
Fehenberger, T. & Alvarado, A., 2020, 45th European Conference on Optical Communication (ECOC 2019). Institution of Engineering and Technology, p. 1-4 4 p. 9125785Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
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A novel soft-aided bit-marking decoder for product codes
Liga, G., Sheikh, A. & Alvarado, A., 30 Jun 2020, 45th European Conference on Optical Communication (ECOC 2019). Institution of Engineering and Technology, 4 p. 9125532. (IET Conference Publications; no. CP765).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile82 Downloads (Pure) -
Digital self-coherent continuous variable quantum key distribution system
Eriksson, T. A., Luis, R. S., Gümüş, K., Rademacher, G., Puttnam, B. J., Furukawa, H., Wada, N., Awaji, Y., Alvarado, A., Sasaki, M. & Takeoka, M., 2020, Optical Fiber Communication Conference, OFC 2020. Optica Publishing Group, p. 1-3 3 p. T3D.5Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
1 Downloads (Pure) -
End-to-End Learning of Geometrical Shaping Maximizing Generalized Mutual Information
Gumus, K., Alvarado, A., Chen, B., Hager, C. & Agrell, E., 13 May 2020, 2020 Optical Fiber Communications Conference and Exhibition, OFC 2020 - Proceedings. Institute of Electrical and Electronics Engineers, 9083181Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile63 Citations (SciVal)97 Downloads (Pure) -
Experimental demonstration of eight-dimensional modulation formats for long-haul optical transmission
van der Heide, S., Chen, B., van den Hout, M., Hafermann, H., Koonen, T., Alvarado, A. & Okonkwo, C., 30 Jun 2020, 45th European Conference on Optical Communication, ECOC 2019. Institution of Engineering and Technology, 4 p. 9125652. (IET Conference Publication; no. CP765).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile112 Downloads (Pure) -
Four-dimensional polarisation-ring-switching for dispersion-managed optical fibre systems
Chen, B., Okonkwo, C., Hafermann, H. & Alvarado, A., 30 Jun 2020, 45th European Conference on Optical Communication, ECOC 2019. Institution of Engineering and Technology, 4 p. 9125783. (IET Conference Publications; no. CP765).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
1 Downloads (Pure) -
Model-Based Machine Learning for Joint Digital Backpropagation and PMD Compensation
Häger, C., Pfister, H. D., Bütler, R. M., Liga, G. & Alvarado, A., 13 May 2020, 2020 Optical Fiber Communications Conference and Exhibition (OFC). 9082974Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
File114 Downloads (Pure) -
Optical communication over non-linear optical fiber
Alvarado, A., Mar 2020, WIC Midwintermeeting 2020 (“Optical Wireless Communications”).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
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Revisiting multi-step nonlinearity compensation with machine learning
Häger, C., Pfister, H. D., Bütler, R. M., Liga, G. & Alvarado, A., 30 Jun 2020, 45th European Conference on Optical Communication (ECOC 2019). Institution of Engineering and Technology, 4 p. 9125675. (IET Conference Publications; no. CP765).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile126 Downloads (Pure) -
System level synchronization of phase-coded FMCW automotive radars for RadCom
Lampel, F., Uysal, F., Tigrek, R. F., Orru, S., Alvarado, A., Willems, F. M. J. & Yarovoy, A., 8 Jul 2020, EuCAP 2020, 14th European Conference on Antennas and Propagation. Piscataway: Institute of Electrical and Electronics Engineers, 5 p. 9135417Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile16 Citations (Scopus)566 Downloads (Pure) -
2019
11,700 km transmission at 4.8 bit/4D-sym via four-dimensional geometrically-shaped polarization-ring-switching modulation
van der Heide, S., Chen, B., van den Hout, M., Liga, G., Koonen, T., Hafermann, H., Alvarado, A. & Okonkwo, C., 1 Jul 2019, OECC/PSC 2019 - 24th OptoElectronics and Communications Conference/International Conference Photonics in Switching and Computing 2019. Piscataway: Institute of Electrical and Electronics Engineers, 3 p. 8817687Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
7 Citations (Scopus)13 Downloads (Pure) -
A performance enhancement technique for a Joint FMCW RadCom system
Lampel, F., Tigrek, R., Alvarado, A. & Willems, F., Oct 2019, EuRAD 2019 - 2019 16th European Radar Conference. Piscataway: Institute of Electrical and Electronics Engineers, p. 169-172 4 p. 8904637Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile26 Citations (Scopus)200 Downloads (Pure) -
Decoding staircase codes with marked bits
Lei, Y., Alvarado, A., Chen, B., Deng, X., Cao, Z., Li, J. & Xu, K., 23 Jan 2019, 2018 IEEE 10th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2018. Piscataway: Institute of Electrical and Electronics Engineers, 5 p. 8625340Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile16 Citations (Scopus)181 Downloads (Pure) -
Fiber nonlinearity mitigation via the parzen window classifier for dispersion managed and unmanaged links
Amari, A., Lin, X., Dobre, O. A., Venkatesan, R. & Alvarado, A., 1 Jul 2019, 21st International Conference on Transparent Optical Networks, ICTON 2019. Piscataway: IEEE Computer Society, 4 p. Fr.C3.1Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
2 Citations (Scopus) -
First experimental demonstration of probabilistic enumerative sphere shaping in optical fiber communications
Goossens, S., van der Heide, S., van den Hout, M., Amari, A., Gültekin, Y. C., Vassilieva, O., Kim, I., Ikeuchi, T., Willems, F. M. J., Alvarado, A. & Okonkwo, C., 1 Jul 2019, OECC/PSC 2019 - 24th OptoElectronics and Communications Conference/International Conference Photonics in Switching and Computing 2019. Piscataway: Institute of Electrical and Electronics Engineers, 3 p. 8818086Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile19 Citations (Scopus)80 Downloads (Pure)