Results 41 to 50 of about 355,925 (390)

Dynamic bandwidth allocation with optimal wavelength switching in TWDM-PONs [PDF]

open access: yes, 2013
Time and wavelength division multiplexed passive optical networks (TWDM-PONs) have been widely considered as one of the next evolutionary steps of optical access networks.
Colle, Didier   +4 more
core   +1 more source

Wavelength tunable lasers in future optical communication systems [PDF]

open access: yes, 2008
Monolithic tunable lasers (TL) have been an important component in dense wavelength division multiplexed (DWDM) systems mainly because of their ability to reduce inventory costs associated with different part numbers for fixed wavelength distributed ...
Anandarajah, Prince M.   +3 more
core   +1 more source

New Photonic System for Optical Packet Switching [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2003
Fast optical switching (ms timebase) is realized by using a RF frequency tone inserted in the optical packet that carries a digital payload. By using a highly selective RF filtering for optical packet header frequency recognition, we have obtained ...
F. Rudge Barbosa   +2 more
doaj  

Integrated 1 $\times$ 8 Optical Phased-Array Switch With Low Polarization Sensitivity for Broadband Optical Packet Switching

open access: yesIEEE Photonics Journal, 2009
An InP/InGaAsP integrated 1 times 8 optical phased-array switch is designed, fabricated, and characterized for high-throughput broadband wavelength-division multiplexed (WDM) optical packet switching application.
Ibrahim Murat Soganci   +2 more
doaj   +1 more source

Coded Packet Transport for Optical Packet/Burst Switched Networks [PDF]

open access: yesPublished in 2015 IEEE Global Communications Conference (GLOBECOM), 2016
This paper presents the Coded Packet Transport (CPT) scheme, a novel transport mechanism for Optical Packet/Burst Switched (OPS/OBS) networks. The CPT scheme exploits the combined benefits of source coding by erasure codes and path diversity to provide efficient means for recovering from packet loss due to contentions and path failures, and to provide ...
arxiv   +1 more source

Power consumption evaluation of circuit-switched versus packet-switched optical backbone networks [PDF]

open access: yes, 2013
While telecommunication networks have historically been dominated by a circuit-switched paradigm, the last decades have seen a clear trend towards packet-switched networks. In this paper we evaluate how both paradigms perform in optical backbone networks
Colle, Didier   +6 more
core   +1 more source

Low-Latency Optical Wireless Data-Center Networks Using Nanoseconds Semiconductor-Based Wavelength Selectors and Arrayed Waveguide Grating Router

open access: yesPhotonics, 2022
In order to meet the massively increasing requirements of big-data applications, data centers (DCs) are key infrastructures to cope with the associated demands, such as high performance, easy scalability, low cabling complexity and low power consumption.
Shaojuan Zhang   +3 more
doaj   +1 more source

SDN-controlled and Orchestrated OPSquare DCN Enabling Automatic Network Slicing with Differentiated QoS Provisioning [PDF]

open access: yesJournal of Lightwave Technology, 2020, 2020
In this work, we propose and experimentally assess the automatic and flexible NSs configurations of optical OPSquare DCN controlled and orchestrated by an extended SDN control plane for multi-tenant applications with differentiated QoS provisioning. Optical Flow Control (OFC) protocol has been developed to prevent packet losses at switch sides caused ...
arxiv   +1 more source

Multi-Granular Optical Cross-Connect: Design, Analysis, and Demonstration [PDF]

open access: yes, 2009
A fundamental issue in all-optical switching is to offer efficient and cost-effective transport services for a wide range of bandwidth granularities. This paper presents multi-granular optical cross-connect (MG-OXC) architectures that combine slow (ms ...
Bart Dhoedt   +25 more
core   +3 more sources

Keeping the packet sequence in optical packet-switched networks

open access: yesOptical Switching and Networking, 2005
This paper deals with optical packet switches with limited buffer capabilities, subject to asynchronous, variable-length packets and connection-oriented operation. The focus is put on buffer scheduling policies and queuing performance evaluation. In particular a combined use of the wavelength and time domain is exploited in order to obtain contention ...
CALLEGATI, FRANCO   +6 more
openaire   +5 more sources

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