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Project: High-Capacity SDM Solutions for Optical Backhaul in 5G Networks and Optical Data Center Connectivity

Acronym: OPTICAL 5G
Main Objective:
This project embraces the investigation of enabled optical networks based on spatial division multiplexing (SDM) for optical backhaul in 5G network infrastructure and data center connectivity. The SDM analysis is going to comprise the investigation of very high capacity optical systems supported by multicore (MCF) and few-mode fibers (FMF), complemented by optical free-space connections.

By introducing an additional orthogonal multiplexing dimension, the space, along with advanced modulation formats we are proposing optical backhaul solutions with very-high capacity, spectral efficiency, and energy efficiency, and low cost per bit. Such kind of solution will reveals of most importance to face the increasing bandwidth demand and challenging requirements arising from new applications in very high capacity future 5G networks.

Due to the short distance involved in such optical backhaul links, the proposed very high capacity optical systems will be extrapolated for application in data center connectivity environments, where a high bandwidth are need to sustain the increase of network traffic due to cloud computing and other emerging web applications.

The main scientific objectives of this project are:
a. Develop a complete set of numerical tools to fully emulate very high capacity optical backhaul systems, supported by MCF and FMF, for 5G networks;
b. Propose new low-complexity and modulation format agnostic digital signal processing (DSP) techniques for flexible and customizable optical coherent systems, employing variable bit rate hybrid quadrature amplitude modulation (QAM) schemes;
c. Design of hybrid SDM networks (MCF/FMF plus free-space optical links) to an increased robustness, flexibility and security of optical backhaul 5G networks;
d. Extrapolated the proposed very-high capacity solutions for application in data center connectivity environments.
Reference: UID/EEA/50008/2013
Funding: IT
Start Date: 01-07-2016
End Date: 01-12-2018
Team: Nelson de Jesus Cordeiro Muga, Paulo Sergio de Brito Andre, Mário Jose Neves de Lima, Ana Maria Sousa da Rocha, Carlos Alberto Ferreira Marques, Carlos Miguel Santos Vicente, Catia Manuela Rodrigues Pinho, Celestino Sanches Martins, Gil Gonçalo Martins Fernandes, Sofia Batalha de Oliveira Pascoal Amado, Somayeh Ziaie
Groups: Optical Communication Systems and Networking – Av, Optical Communication Systems and Networking – Lx
Partners:
Local Coordinator: Nelson de Jesus Cordeiro Muga
Links: http://www.av.it.pt/optical-5g/

Associated Publications
  • 2Boock Chapters
  • I. Alimi, N. J. Muga, A. Mahmoud, C. Pinho, J. Rodriguez, P. Monteiro, A. Teixeira, Towards a Converged Optical-Wireless Fronthaul/Backhaul Solution for 5G Networks and Beyond, Chapter in, Optical and Wireless Convergence for 5G Networks and Beyond, Wiley, London, 2019
  • G. Fernandes, N. J. Muga, A. N. Pinto, Space-Division Multiplexing in Fiber-Optic Transmission Systems, Chapter in, Optical Fibers: Technology, Communications and Recent Advances, Mário F. S. Ferreira, Nova Publisher, New York, 2017
  • 4Papers in Journals
  • G. Fernandes, N. J. Muga, A. N. Pinto, Reduced-complexity algorithm for space-demultiplexing based on higher-order Poincaré spheres, Optics Express, Vol. 26, No. 10, pp. 13506 - 13506, May, 2018 | BibTex
  • S. B. Amado, N. J. Muga, F. P. Guiomar, A. N. Nespola, L. Bertignono, A. Carena Carena, A. N. Pinto, Nonlinear Mitigation for 400G Frequency-Hybrid Superchannels, Journal of Lightwave Technology, Vol. 45, No. 18, pp. 3963 - 3973, September, 2017 | BibTex
  • N. J. Muga, A. N. Pinto, PMD tolerance in Stokes space based polarization de-multiplexing algorithms, Optical and Quantum Electronics, Vol. 49, No. 6, pp. 215 - 225, June, 2017,
    | Abstract
    | BibTex
  • G. Fernandes, N. J. Muga, A. N. Pinto, Space-demultiplexing based on higher-order Poincaré spheres, Optics Express, Vol. 25, No. 4, pp. 3899 - 3899, February, 2017 | BibTex
  • 8Papers in Conferences
  • N. J. Muga, G. Fernandes, M. J. N. Lima, A. N. Pinto, P.S André, M. Facão, Ana M. Rocha, Optical and digital key enabling techniques for SDM-based optical networks, International Conf. on Transparent Optical Networks - ICTON, Bucareste, Romania, July, 2018 | BibTex
  • F. Ribeiro, J. Guerreiro, R. Dinis, Cercas, F. Cercas, A. Silva, A. N. Pinto, Nonlinear Effects of Radio over Fiber Transmission in Base Station Cooperation Systems, IEEE GLOBECOM 2017 Workshops: 6th International Workshop on Emerging Technologies for 5G and Beyond Wireless and Mobile Networks, Singapore, Singapore, December, 2017,
    | Abstract
    | Full text (PDF 396 KBs) | BibTex
  • P.S André, Optical Communications for 5G: the contribute of VLC, International Microwave and Optoelectronics Conf. - IMOC, Águas de Lindoia,, Brazil, August, 2017 | BibTex
  • N. J. Muga, G. Fernandes, S. Ziaie, RMF Ferreira, A. Shahpari, A. Teixeira, A. N. Pinto, Advanced digital signal processing techniques based on Stokes space analysis for high-capacity coherent optical systems, International Conference on Transparent Optical Networks ICTON, Girona, Spain, Vol. 1, pp. 1 - 5, July, 2017,
    | Abstract
    | BibTex
  • G. Fernandes, N. J. Muga, A. N. Pinto, MIMO processing based on higher-order Poincaré spheres, III International Conference on Applications in Optics and Photonics (AOP 2017), Faro, Portugal, May, 2017,
    | Abstract
    | BibTex
  • S. Ziaie, N. J. Muga, RMF Ferreira, F. P. Guiomar, A. Shahpari, A. Teixeira, A. N. Pinto, Adaptive Stokes Space Based Polarization Demultiplexing for Flexible UDWDM Metro-Access Networks, OSA Optical Fiber Communications - OFC, Los Angeles, United States, Vol. Th1K.6, pp. 1 - 3, March, 2017 | BibTex
  • S. B. Amado, F. P. Guiomar, N. J. Muga, A. N. Nespola, L. Bertignono, A. Carena Carena, A. N. Pinto, 400G Frequency-Hybrid Superchannel for the 62.5 GHz Slot, OSA Optical Fiber Communications - OFC, Los Angeles, United States, March, 2017 | BibTex
  • N. J. Muga, S. Ziaie, A. Shahpari, A. N. Pinto, Using the Stokes Space for Equalization of Polarization Impairments in Digital Coherent Optical Receivers, International Conf. on Transparent Optical Networks - ICTON, Trento, Italy, Vol. Mo.B2.4, pp. 1 - 3, July, 2016 | BibTex