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3 results on '"Design and dynamics"'

1. Tripod stiffening using clamping plates with no increase of moving mass.

Author

Xi, FengFeng, Cammarata, Alessandro, and Sinatra, Rosario

Abstract

In this paper, a new method is presented for stiffening a tripod made of fixed-length legs. The idea is to add a pair of clamping plates to each leg. In doing so, the out-of-plane motion of the leg is fully constrained, thereby significantly increasing its bending stiffness. Compared to the existing designs, the advantage of this new design is that the clamping plates are the non-moving parts, therefore not contributing to the moving mass. As a result, the tripod can still be made very compact with light moving mass. To facilitate the design of the clamping plates, a method is proposed for analyzing the workspace of the sliding leg so that the shape of the clamping plates and the location of the clamping point can be properly selected. This design has been implemented on an existing tripod for polishing applications. Both theoretical and experimental results have shown the effectiveness of this new design. [ABSTRACT FROM AUTHOR]

Published
2012
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2. ACCENT5 A vision for D2D communications within 5G networks

Author

Rostom Zakaria, Lorenzo Iacobelli, Quentin Bodinier, Mylene Pischella, Faouzi Bader, Alain Untersee, Ali Dziri, Olivier Rousset, Anael Bourrous, Thales Communications and Security, Conservatoire National des Arts et Métiers [CNAM] (CNAM), Teamcast, Institut d'Electronique et de Télécommunications de Rennes (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)

Subjects
Research agency, Cover (telecommunications), Computer science, 050801 communication & media studies, 02 engineering and technology, Deviceto-device (D2D) communication, Base station, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0508 media and communications, 5G mobile communication systems, D2D communications, 0202 electrical engineering, electronic engineering, information engineering, Wireless telecommunication systems, Thales Communications, Protocol (object-oriented programming), Wireless network, business.industry, Quality of service, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, 05 social sciences, Frame (networking), LTE Networks, Physical layer, Medium access control, 020206 networking & telecommunications, Network layers, [SPI.TRON]Engineering Sciences [physics]/Electronics, Mobile telecommunication systems, Queueing networks, Design and dynamics, Physical layers, business, 5G, Radio resource allocation, Computer network
Abstract

International audience; The paper presents the studies that have been led toward the integration of device-to-device (D2D) communications within LTE networks in the frame of the project ACCENT5 (Advanced Waveforms, MAC Design and Dynamic Radio Resource Allocation for Device-to-Device in 5G Wireless Networks) supported by the French National Research Agency. The solutions presented in this paper cover several aspects of D2D communications; they are the result of a close cooperation between four partners Thales Communications and Security, CNAM, TeamCast and CentraleSupélec. Physical Layer aspects have been investigated, especially concerning waveforms envisioned for D2D communications within 5G networks. Also, a new MAC protocol has been designed to address the issues raised by the integration of D2D transmissions within LTE cells. The solution coming out of the study guarantees a minimum QoS for both types of users (D2D users and regular users) and aims at reusing spectrum while offloading the burden on the base station. © 2017 IEEE.

Published
2017
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3. ACCENTS: a Vision for D2D Communications within 5G Networks

Author

Bader, Faouzi, Bodinier, Quentin, Rousset, Olivier, Untersee, Alain, Dziri, Aii, Rostom Zakaria, Pischella, Mylene, Iacobelli, Lorenzo, Bourrous, Anael, Conservatoire National des Arts et Métiers [CNAM] (CNAM), Centre d'études et de recherche en informatique et communications (CEDRIC), Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), Teamcast, Institut d'Électronique et des Technologies du numéRique (IETR), Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), French National Research Agency (ANR) through the ACCENTS project [ANR-14-CE28-0026-01], ANR-14-CE28-0026,ACCENT5,Formes d'onde avancées, MAC et allocation dynamique de ressource radio pour les communications directes de terminal à terminal dans les réseaux 5G(2014), Université de Nantes (UN)-Université de Rennes 1 (UR1), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)

Subjects
Research agency, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, LTE Networks, Medium access control, Network layers, [SPI.TRON]Engineering Sciences [physics]/Electronics, Deviceto-device (D2D) communication, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 5G mobile communication systems, Mobile telecommunication systems, D2D communications, Queueing networks, Design and dynamics, Wireless telecommunication systems, Thales Communications, Physical layers, Radio resource allocation
Abstract

International audience; The paper presents the studies that have been led toward the integration of device-to-device (D2D) communications within LTE networks in the frame of the project ACCENTS (Advanced Waveforms, MAC Design and Dynamic Radio Resource Allocation for Device-to-Device in SG Wireless Networks) supported by the French National Research Agency. The solutions presented in this paper cover several aspects of D2D communications; they are the result of a close cooperation between four partners: Thales Communications and Security, CNAM, TeamCast and CentraleSupelec. Physical Layer aspects have been investigated, especially concerning waveforms envisioned for D2D communications within SG networks. Also, a new MAC protocol has been designed to address the issues raised by the integration of D2D transmissions within LTE cells. The solution coming out of the study guarantees a minimum QoS for both types of users (D2D users and regular users) and aims at reusing spectrum while offloading the burden on the base station.

Published
2017
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