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Building on the Use of Spatial Multiplexing 5G Networks Infrastructures and Showcasing Advanced technologies and Networking Capabilties

Deliverables

Project web site and Project collaborative tool

A web site will be created and launched. Both public and internal section will be created.

Concept paper of the blueSPACE project

Concept paper describing the blueSPACE project.

Physical architecture, system and network requirements

The purpose is to list and categorize the possible solutions and primarily specify the required extensions for the support of the SDM capabilities offered by the network. The solutions are then adapted to the proposed architecture with emphasis on: a) the network dimensioning and coverage, including the number of supported RRU sites b) the exact definition of the operating parameters, including (and not limited to) the number of wavelengths per fiber/core, the frequency bands to be considered, the targeted modulation formats, c) the end user coverage options considering the required and supported number of antenna elements per RRU and the grouping of elements supported by the SDM approach.

Report on compatibility issues with other 5G backhaul solutions and interfacing requirements

This deliverable analyses the compatibility between the blueSPACE architecture and other 5G backhaul solutions proposed in other 5G-PPP projects and resource groups, presenting possible extensions, modifications and interfacing requirements for the relevant network infrastructure, control and orchestration technologies.

Data Management Plan

This deliverable reports on the effort and actions of BLUESPACE for data management.

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Publications

Remote Optical Powering Using Fiber Optics in Hazardous Environments

Author(s): J. D. Lopez-Cardona, Carmen Vazquez, David Sanchez Montero, Pedro Contreras Lallana
Published in: Journal of Lightwave Technology, Issue 36/3, 2018, Page(s) 748-754, ISSN 0733-8724
DOI: 10.1109/jlt.2017.2776399

Fronthaul Network Modeling and Dimensioning Meeting Ultra-Low Latency Requirements for 5G

Author(s): Gabriel Otero Pérez, José Alberto Hernández, David Larrabeiti
Published in: Journal of Optical Communications and Networking, Issue 10/6, 2018, Page(s) 573, ISSN 1943-0620
DOI: 10.1364/jocn.10.000573

Smart Remote Nodes Fed by Power over Fiber in Internet of Things Applications

Author(s): Juan D. Lopez-Cardona, David S. Montero, C. Vazquez
Published in: IEEE Sensors Journal, Issue Early Access article, 2019, Page(s) 1-1, ISSN 1530-437X
DOI: 10.1109/jsen.2019.2915613

High-Capacity 5G Fronthaul Networks Based on Optical Space Division Multiplexing

Author(s): Simon Rommel, Diego Perez-Galacho, Josep M. Fabrega, Raul Munoz, Salvador Sales, Idelfonso Tafur Monroy
Published in: IEEE Transactions on Broadcasting, 2019, Page(s) 1-10, ISSN 0018-9316
DOI: 10.1109/tbc.2019.2901412

SDN Control of Sliceable Multidimensional (Spectral and Spatial) Transceivers with YANG/NETCONF

Author(s): R. Muñoz, N. Yoshikane, R. Vilalta, J. M. Fàbrega, L. Rodríguez, R. Casellas, M. Svaluto Moreolo, R. Martínez, L. Nadal, D. Soma, Y. Wakayama, S. Beppu, S. Sumita, T. Tsuritani, I. Morita
Published in: Journal of Optical Communications and Networking, Issue 11/2, 2019, Page(s) A123, ISSN 1943-0620
DOI: 10.1364/jocn.11.00a123

5G RAN architecture based on analog radio-over-fiber fronthaul over UDWDM-PON and phased array fed reflector antennas

Author(s): Dimitrios Konstantinou, Thomas A.H. Bressner, Simon Rommel, Ulf Johannsen, Martin N. Johansson, Marianna V. Ivashina, A. Bart Smolders, Idelfonso Tafur Monroy
Published in: Optics Communications, Issue 454, 2020, Page(s) 124464, ISSN 0030-4018
DOI: 10.1016/j.optcom.2019.124464

Multicore Fiber Scenarios Supporting Power Over Fiber in Radio Over Fiber Systems

Author(s): Carmen Vazquez, Juan Dayron Lopez-Cardona, Pedro Contreras Lallana, David Sanchez Montero, Fahad Mohammed Abdulhussein Al-Zubaidi, Sandra Perez-Prieto, Isabel Perez Garcilopez
Published in: IEEE Access, Issue 7, 2019, Page(s) 158409-158418, ISSN 2169-3536
DOI: 10.1109/access.2019.2950599

Enhanced Modal Dispersion Estimation Enabled by Chromatic Dispersion Compensation in Optical Vector Network Analysis

Author(s): John van Weerdenburg, Simon Rommel, Jose Manuel Delgado Mendinueta, Werner Klaus, Jun Sakaguchi, Juan Jose Vegas Olmos, Ton Koonen, Yoshinari Awaji, Idelfonso Tafur Monroy, Chigo Okonkwo, Naoya Wada
Published in: Journal of Lightwave Technology, Issue 37/16, 2019, Page(s) 4001-4007, ISSN 0733-8724
DOI: 10.1109/jlt.2019.2923112

Polarization Equalization in Optical Vector Network Analysis for SDM Fiber Characterization

Author(s): Simon Rommel, Idelfonso Tafur Monroy, Naoya Wada, John van Weerdenburg, Jose Manuel Delgado Mendinueta, Werner Klaus, Jun Sakaguchi, Juan Jose Vegas Olmos, Ton Koonen, Yoshinari Awaji, Chigo Okonkwo
Published in: IEEE Photonics Technology Letters, Issue 31/24, 2019, Page(s) 1917-1920, ISSN 1041-1135
DOI: 10.1109/lpt.2019.2949615

Millimeter Wave Hybrid Photonic Wireless Links - Also for Broadcast?

Author(s): Simon Rommel, Alvaro Morales, Dimitrios Konstantinou, Toms Salgals, Idelfonso Tafur Monroy
Published in: 2018 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2018, Page(s) 1-5
DOI: 10.1109/bmsb.2018.8436888

Enabling Vertical Industries Adoption of 5G Technologies: A Cartography of Evolving Solutions

Author(s): Anastasios Zafeiropoulos, Panagiotis Gouvas, Eleni Fotopoulou, George Tsiolis, Thanos Xirofotos, Jose Bonnet, Gino Carrozzo, Stamatia Rizou, Anastasius Gavras, Maria Joao Barros, Xavier Costa-Perez, Athul Prasad, Marco Gramaglia, Anna Tzanakaki, Dimitra Simeonidou, John Cosmas, Mikael Fallgren, Raul Munoz, Ricard Vilalta
Published in: 2018 European Conference on Networks and Communications (EuCNC), 2018, Page(s) 1-9
DOI: 10.1109/EuCNC.2018.8442656

BlueSPACE's SDN/NFV Architecture for 5G SDM/WDM-Enabled Fronthaul with Edge Computing

Author(s): Raul Munoz, Ricard Vilalta, Josep M. Fabrega, Laura Rodriguez, Ricardo Martinez, Ramon Casellas, Giada Landi, Marco Capitani
Published in: 2018 European Conference on Networks and Communications (EuCNC), 2018, Page(s) 403-9
DOI: 10.1109/EuCNC.2018.8443224

Hybrid WDM/SDM Mobile Fronthaul Traffic Delivery Using SDN-Enabled Sliceable Bandwidth/Bitrate Variable Transceivers

Author(s): Josep M. Fabrega, Raul Munoz, Michela Svaluto Moreolo, Ramon Casellas, Laia Nadal, Ricardo Martinez, Ricard Vilalta, F. Javier Vilchez
Published in: 2018 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2018, Page(s) 1-5
DOI: 10.1109/BMSB.2018.8436815

Integrated microwave photonics for 5G

Author(s): Chris Roeloffzen, Ilka Visscher, Caterina Taddei, Dimitri Geskus, Ruud Oldenbeuving, Jörn Epping, Roelof Bernardus Timens, Paul van Dijk, René Heideman, Marcel Hoekman, Robert Grootjans, Laurens Bliek, Sander Wahls, Michel Verhaegen
Published in: Conference on Lasers and Electro-Optics, 2018, Page(s) JTh3D.2
DOI: 10.1364/CLEO_AT.2018.JTh3D.2

SDN-enabled Sliceable Multi-dimensional (Spectral and Spatial) Transceiver Controlled with YANG/NETCONF

Author(s): R. Muñoz, N. Yoshikane, R. Casellas, J. M. Fàbrega, R. Vilalta, M. Svaluto Moreolo, L. Nadal, R. Martínez, D. Soma, Y. Wakayama, S. Beppu, S. Sumita, T. Tsuritani, I. Morita
Published in: Optical Fiber Communication Conference, 2018, Page(s) M2A.5
DOI: 10.1364/OFC.2018.M2A.5

SDN Control and Monitoring of SDM/WDM and Packet Transport Networks for 5G Fronthaul/Backhaul

Author(s): R. Munoz, J. M. Fabrega, R. Vilalta, M. Svaluto Moreolo, R. Martinez, Ramon Casellas, N. Yoshikane, T. Tsuritani, I. Morita
Published in: 2018 IEEE Photonics Society Summer Topical Meeting Series (SUM), 2018, Page(s) 151-152
DOI: 10.1109/PHOSST.2018.8456748

High-Speed Wireless Access in Forested Rural Areas Using Analog Radio-over-Fiber Technology

Author(s): Dimitrios Konstantinou, Alvaro Morales, Imane Aghmari, Simon Rommel, Thiago R. Raddo, Ulf Johannsen, Idelfonso Tafur Monroy
Published in: Latin America Optics and Photonics Conference, 2018, Page(s) Tu2B.4
DOI: 10.1364/LAOP.2018.Tu2B.4

mm-Wave and THz Analog Radio-over-Fiber for 5G, Wireless Communications and Sensing

Author(s): Simon Rommel, Alvaro Morales, Dimitrios Konstantinou, Thiago R. Raddo, Idelfonso Tafur Monroy
Published in: Latin America Optics and Photonics Conference, 2018, Page(s) W3D.1
DOI: 10.1364/LAOP.2018.W3D.1

Testing Facilities for End-to-End Test of Vertical Applications Enabled by 5G Networks: Eindhoven 5G Brainport Testbed

Author(s): Idelfonso Tafur Monroy, Thiago R. Raddo, Simon Rommel, Chigo Okonkwo, Nicola Calabretta, Ulf Johannsen, Gijs Dubbelman, Jesse Scholtes, Ben Rutten
Published in: 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018, Page(s) 1-5
DOI: 10.1109/ICTON.2018.8473880

Centralized optical true time delay beamforming at 60 GHz with multicore fiber distribution

Author(s): Alvaro Morales, Simon Rommel, Idelfonso Tafur Monroy
Published in: Latin America Optics and Photonics Conference, 2018, Page(s) Tu2B.3
DOI: 10.1364/LAOP.2018.Tu2B.3

Measurement of Modal Dispersion and Group Delay in a Large Core Count Few-Mode Multi-Core Fiber

Author(s): Simon Rommel, Jose Manuel Delgado Mendinueta, Werner Klaus, Jun Sakaguchi, Juan Jose Vegas Olmos, Yoshinari Awaji, Idelfonso Tafur Monroy, Naoya Wada
Published in: 2018 European Conference on Optical Communication (ECOC), 2018, Page(s) 1-3
DOI: 10.1109/ECOC.2018.8535556

The Fronthaul Infrastructure of 5G Mobile Networks

Author(s): Simon Rommel, R. Thiago Raddo, Idelfonso Tafur Monroy
Published in: 2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2018, Page(s) 1-6
DOI: 10.1109/CAMAD.2018.8514944

Experimental Validation of Hybrid WDM/SDM Signal Delivery for Mobile Fronthaul over PONs Using SDN-Enabled Sliceable Bitrate Variable Transceivers

Author(s): Josep M. Fabrega, Laia Nadal, Ramon Casellas, Michela Svaluto Moreolo, F. Javier Vilchez, Ricard Vilalta, Ricardo Martinez, Raul Munoz, Salvador Sales, Ivana Gasulla, Jose Capmany
Published in: 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018, Page(s) 1-4
DOI: 10.1109/ICTON.2018.8473719

Experimental Investigation of the Effect of Pilot Tone Modulation on Partial Response Modulation Formats

Author(s): Peter Madsen, Anders T. Clausen, Annika Dochhan, Michael Eiselt
Published in: 2018 European Conference on Optical Communication (ECOC), 2018, Page(s) 1-3
DOI: 10.1109/ecoc.2018.8535574

Experimental Demonstration of the BlueSPACE's NFV MANO Framework for the Control of SDM/WDM-Enabled Fronthaul and Packet-Based Transport Networks by Extending the TAPI

Author(s): R. Vilalta, R. Munoz, G. Landi, L. Rodriguez, M. Capitani, R. Casellas, R. Martinez
Published in: 2018 European Conference on Optical Communication (ECOC), 2018, Page(s) 1-3
DOI: 10.1109/ECOC.2018.8535514

SDN-Based Multi-Core Power-Over-Fiber (PoF) System for 5G Fronthaul: Towards PoF Pooling

Author(s): G. Otero, J.D. Lopez-Cardona, R. Munoz, C. Vazquez, D. Larrabeiti, R. Vilalta, J.A. Hernandez, J. M. Fabrega
Published in: 2018 European Conference on Optical Communication (ECOC), 2018, Page(s) 1-3
DOI: 10.1109/ECOC.2018.8535543

SDN Control and Monitoring System for Soft-Failure Detection and Optical Restoration of Spectral/Spatial Superchannels

Author(s): R. Munoz, N. Yoshikane, J. M. Fabrega, R. Vilalta, L. Rodriguez, M. Svaluto Moreolo, R. Casellas, R. Martinez, S. Beppu, D. Soma, T. Tsuritani, I. Morita
Published in: 2018 European Conference on Optical Communication (ECOC), 2018, Page(s) 1-3
DOI: 10.1109/ECOC.2018.8535244

Beyond 5G - wireless data center connectivity

Author(s): Simon Rommel, Thiago R. Raddo, Ulf Johannsen, Chigo Okonkwo, Idelfonso Tafur Monroy
Published in: Broadband Access Communication Technologies XIII, 2019, Page(s) 22
DOI: 10.1117/12.2506269

Generation of mmWave 5G Signals Using Microwave Photonics

Author(s): Diego Perez-Galacho, Victor Nacher-Castellet, Salvador Sales
Published in: 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018, Page(s) 1-4
DOI: 10.1109/icton.2018.8473790

Silicon Modulators for the Generation of Advanced Modulation Formats

Author(s): Diego Perez-Galacho, Laurent Bramerie, Charles Baudot, Mohamed Chaibi, Sonia Messaoudene, Nathalie Vulliet, Laurent Vivien, Frederic Boeuf, Christophe Peucheret, Delphine Marris-Morini
Published in: 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018, Page(s) 1-4
DOI: 10.1109/icton.2018.8473806

Analog Optical Links for 5G Fronthaul Networks

Author(s): Diego Perez Galacho, Victor Nacher-Castellet, Salvador Sales
Published in: 2018 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2018, Page(s) 1-4
DOI: 10.1109/bmsb.2018.8436768

Mode converters based on periodically perturbed waveguides for mode division multiplexing

Author(s): Diego Pérez-Galacho, Carlos Alonso-Ramos, Delphine Marris-Morini, Vladyslav Vakarin, Xavier Le Roux, Laurent Vivien
Published in: Silicon Photonics: From Fundamental Research to Manufacturing, 2018, Page(s) 26
DOI: 10.1117/12.2307700

RoF links in the front-haul network for the future 5G communications

Author(s): Diego Perez-Galacho, Victor Nacher-Castellet, Salvador Sales
Published in: CLEO Pacific Rim Conference, 2018, Page(s) Th4F.4
DOI: 10.1364/cleopr.2018.th4f.4

Chromatic Dispersion Analysis and Compensation in a Large Core-Count Few-Mode Multi-Core Fiber Based on Optical Vector Network Analysis

Author(s): John van Weerdenburg, Simon Rommel, José Manuel Delgado Mendinueta, Werner Klaus, Jun Sakaguchi, Juan José Vegas Olmos, Ton Koonen, Yoshinari Awaji, Idelfonso Tafur Monroy, Chigo Okonkwo, Naoya Wada
Published in: Optical Fiber Communication Conference (OFC) 2019, 2019, Page(s) M1E.2
DOI: 10.1364/ofc.2019.m1e.2

Physical-layer confidentiality by chaotic encoding in radio-over-fiber systems

Author(s): Alvaro Morales, Dimitrios Konstantinou, Simon Rommel, Ulf Johannsen, Chigo Okonkwo, Idelfonso Tafur Monroy
Published in: Optical Fiber Communication Conference (OFC) 2019, 2019, Page(s) W1I.1
DOI: 10.1364/ofc.2019.w1i.1

Data Center Connectivity by 6G Wireless Systems

Author(s): Simon Rommel, Thiago R. Raddo, Idelfonso Tafur Monroy
Published in: 2018 Photonics in Switching and Computing (PSC), 2018, Page(s) 1-3
DOI: 10.1109/ps.2018.8751363

SDN-enabled Scaling up/down of SDM Super-Channels Exploiting Spatial Modes with Adaptive MIMO Equalization and Modulation Format Assignment

Author(s): R. Muñoz, N. Yoshikane, J. M. Fàbrega, L. Rodríguez, R. Vilalta, D. Soma, S. Beppu, S. Sumita, R. Casellas, R. Martínez, T. Tsuritani, I. Morita
Published in: Optical Fiber Communication Conference (OFC) 2019, 2019, Page(s) M4J.7
DOI: 10.1364/ofc.2019.m4j.7

Experimental Characterization of Back-Scattering Interference Limits for Fronthaul employing Bitrate Variable Transceivers based on OFDM and Direct Detection

Author(s): Josep M. Fabrega, Michela Svaluto Moreolo, Laia Nadal
Published in: Optical Fiber Communication Conference (OFC) 2019, 2019, Page(s) W2A.29
DOI: 10.1364/ofc.2019.w2a.29

Single-Ended Fiber Latency Measurement with Picosecond-Accuracy Using Correlation OTDR

Author(s): Michael H. Eiselt, Annika Dochhan
Published in: 2018 23rd Opto-Electronics and Communications Conference (OECC), 2018, Page(s) 1-2
DOI: 10.1109/oecc.2018.8729866

Data Center Interconnects at 400G and Beyond

Author(s): Michael H. Eiselt, Annika Dochhan, Joerg-Peter Elbers
Published in: 2018 23rd Opto-Electronics and Communications Conference (OECC), 2018, Page(s) 1-2
DOI: 10.1109/oecc.2018.8730011

Analog Radio Over Fiber Fronthaul for High Bandwidth 5G Millimeter-Wave Carrier Aggregated OFDM

Author(s): Dimitrios Konstantinou, Alvaro Morales, Simon Rommel, Thiago R. Raddo, Ulf Johannsen, Idelfonso Tafur Monroy
Published in: 2019 21st International Conference on Transparent Optical Networks (ICTON), 2019, Page(s) 1-4
DOI: 10.1109/icton.2019.8840525

Power over Fiber in Radio over Fiber Systems in 5G Scenarios

Author(s): C. Vazquez, J.D. Lopez-Cardona, D. S. Montero, I. Perez, P. C. Lallana, Fahad M. A. Al-Zubaidi
Published in: 2019 21st International Conference on Transparent Optical Networks (ICTON), 2019, Page(s) 1-4
DOI: 10.1109/ICTON.2019.8840168

Experiments on Shared- and Dedicated- Power over Fiber Scenarios in Multi-core Fibers

Author(s): C. Vazquez, D. S. Montero, Fahad M. A. Al-Zubaidi, J. D. Lopez-Cardona
Published in: 2019 European Conference on Networks and Communications (EuCNC), 2019, Page(s) 412-415
DOI: 10.1109/EuCNC.2019.8802042

Long-Term Latency Measurement of Deployed Fiber

Author(s): Florian Azendorf, Annika Dochhan, Ralf-Peter Braun, Michael Eiselt
Published in: Optical Fiber Communication Conference (OFC) 2019, 2019, Page(s) Tu3J.2
DOI: 10.1364/ofc.2019.tu3j.2

Bidirectional K-Band Photonic/Wireless Link for 5G Communications

Author(s): A. Morales, D. Konstantinou, S. Rommel, T. R. Raddo, U. Johannsen, C. Okonkwo, I. Tafur Monroy
Published in: 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2019, Page(s) 1-2
DOI: 10.1109/irmmw-thz.2019.8874031

SDN/NFV 5G Fronthaul Networks Integrating Analog/Digital RoF, Optical Beamforming, Power over Fiber and Optical SDM Technologies

Author(s): Raul Munoz, Josep M. Fabrega, R. Vilalta, R. Casellas, L. Nadal, R. Martinez, M. Svaluto Moreolo, Marco Capitani, Giada Landi, Simon Rommel, Idelfonso Tafur Monroy, Gabriel Otero, Juan Dayron Lopez, Carmen Vazquez, David Larrabeiti, David Sanchez, Evangelos Grivas
Published in: 2019 European Conference on Networks and Communications (EuCNC), 2019, Page(s) 459-463
DOI: 10.1109/eucnc.2019.8802045

Digitized Radio-over-Fiber Transceivers for SDM/WDM Back-/Front-Haul

Author(s): J. M. Fabrega, R. Munoz, M. Svaluto Moreolo, L. Nadal, M. Eiselt, F. Azendorf, J. P. Turkiewicz, P. W. L. van Dijk, S. Rommel, I. Tafur Monroy
Published in: 2019 21st International Conference on Transparent Optical Networks (ICTON), 2019, Page(s) 1-4
DOI: 10.1109/icton.2019.8840508

Extended range ultra-wideband millimeter-wave channel sounder with over-the-air calibration

Author(s): Schulpen, Robbert; Konstantinou, Dimitrios; Rommel, Simon; Johannsen, Ulf; Tafur Monroy, Idelfonso; Smolders, Bart
Published in: TITLE=13th European Conference on Antennas and Propagation (EuCAP 2019), Issue 1, 2019

Analog Radio-over-Fiber 5G Fronthaul Systems: blueSPACE and 5G-PHOS Projects Convergence

Author(s): Thiago R. Raddo, Simon Rommel, Idelfonso Tafur Monroy, Chris Vagionas, George Kalfas, Nikos Pleros
Published in: 2019 European Conference on Networks and Communications (EuCNC), 2019, Page(s) 479-484
DOI: 10.1109/eucnc.2019.8801979

An end-to-end 5G automotive ecosystem for autonomous driving vehicles

Author(s): Thiago Raddo, Bruno Cimoli, Bogdan Sirbu, Simon Rommel, Tolga Tekin, Idelfonso Tafur Monroy
Published in: Broadband Access Communication Technologies XIV, 2020, Page(s) 4
DOI: 10.1117/12.2548146

SDN/NFV Control and Orchestration for SDM Networks

Author(s): R. Munoz, R. Vilalta, J.M. Fabrega, R. Casellas, R. Martinez, N. Yoshikane, T. Tsuritani, I. Morita
Published in: 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019, Page(s) 1-3
DOI: 10.23919/PS.2019.8817985

The Optical Fiber and mmWave Wireless Convergence for 5G Fronthaul Networks

Author(s): Thiago R. Raddo, Simon Rommel, Bruno Cimoli, Idelfonso Tafur Monroy
Published in: 2019 IEEE 2nd 5G World Forum (5GWF), 2019, Page(s) 607-612
DOI: 10.1109/5gwf.2019.8911613

The Integration of 5G, PON and VLC Technologies for Ubiquitous Connectivity in Autonomous and Cooperative Systems

Author(s): I. Kurbatska, J. Braunfelds, V. Bobrovs, S. Spolitis, T.R. Raddo, B. Cimoli, S. Rommel, I. Tafur Monroy
Published in: 2019 IEEE 2nd 5G World Forum (5GWF), 2019, Page(s) 237-242
DOI: 10.1109/5gwf.2019.8911668

Enabling Remote Computation for Soccer Robots using 5G mm-Waves

Author(s): Kamath, Aditya Gurudatt
Published in: 2019
DOI: 10.5281/zenodo.3519223