Results 31 to 40 of about 532,754 (349)

Next-Generation Optical Access Networks [PDF]

open access: yesFrontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, 2009
First-generation optical access networks have now been well-defined. This talk will focus on second- and third- generation networks including graceful evolution from single-wavelength to WDM and increasing integration of optical and wireless technologies.
Leonid G. Kazovsky   +3 more
openaire   +2 more sources

Energy-Efficient and Survivable Optical Access Network Based on Multilayer-Ring Structure

open access: yesIEEE Photonics Journal, 2017
An energy-efficient and survivable optical access network structure is proposed and investigated. Based on a structure model of multilayer-ring, the access network is divided into four layers and modules on a same layer are interconnected as a ring ...
Yunxin Lv   +3 more
doaj   +1 more source

Chaotic Spread Spectrum Technology for Optical Code Division Multiple Access Passive Optical Network

open access: yesGuangtongxin yanjiu, 2021
Aiming at the problem of capacity in Wavelength Division Multiplexing-Passive Optical Network (WDM-PON), Optical Code Division Multiple Access WDM-PON (OCDMA-WDM-PON) based on chaotic spread spectrum is proposed to expand the capacity and rate, ensuring ...
Li-wei YANG   +4 more
doaj   +1 more source

Multicast Routing in Optical Access Networks [PDF]

open access: yes, 2010
Widely available broadband services in the Internet require high capacity access networks. Only optical networking is able to efficiently provide the huge bandwidth required by multimedia applications. Distributed applications such as Video-Conferencing, HDTV, VOD and Distance Learning are increasingly common and produce a large amount of data traffic,
Molnár, Miklós   +2 more
openaire   +2 more sources

Flexibility evaluation of hybrid WDM/TDM PONs [PDF]

open access: yes, 2011
A hybrid WDM/TDM passive optical network (PON) is a promising candidate for next-generation optical access (NGOA) solutions. Several hybrid WDM/TDM PON architectures can be designed, each with a different degree of flexibility, going from fully static ...
Colle, Didier   +5 more
core   +1 more source

Next-generation optical access seamless Evolution: concluding results of the European FP7 project OASE [PDF]

open access: yes, 2015
Increasing bandwidth demand drives the need for next-generation optical access (NGOA) networks that can meet future end-user service requirements.
Bianchi, Alberto   +11 more
core   +2 more sources

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

Energy-Efficient Scheme Based on Sub-Band Grouping and Allocating for Digital Filter Multiple Access Adopted PON

open access: yesIEEE Photonics Journal, 2017
An energy-efficient optical access network scheme based on sub-band grouping and allocating is proposed and studied for the digital filter multiple access adopted passive optical network (DFMA-PON).
Yunxin Lv   +4 more
doaj   +1 more source

RoFnet – Reconfigurable Radio over Fiber Network Architecture Overview

open access: yesJournal of Telecommunications and Information Technology, 2023
This paper introduces the basic operational concepts of the RoFnet – reconfigurable radio over fiber network, which is a project supported by the Portuguese Foundation forScience and Technology.
Maria C. R. Medeiros   +8 more
doaj   +1 more source

‘They Need to Hear You Say It’: Healthcare Professionals’ Perspectives on Barriers and Enablers to End‐of‐Life Discussions With Adolescents and Young Adults With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT End‐of‐life conversations with adolescents and young adults (AYAs) with cancer rarely occur without the guidance of healthcare professionals. As a part of the ‘Difficult Discussions’ study, focused on palliative care and advance care planning discussions with AYAs with cancer, we investigated the factors that healthcare professionals identify ...
Justine Lee   +9 more
wiley   +1 more source

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