Results 31 to 40 of about 266,133 (181)
Learning diffractive optical communication around arbitrary opaque occlusions
Nature Communications, 2023 Free-space optical communication becomes challenging when an occlusion blocks the light path. Here, we demonstrate a direct communication scheme, passing optical information around a fully opaque, arbitrarily shaped occlusion that partially or entirely ...
Md Sadman Sakib Rahman +5 more
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A novel low cost bidirectional transmission coherent passive optical network system
Dianxin kexue, 2016 Based on the coherent optical reception technology,a cost-effective structure for the optical network unit (ONU) transceivers in ultra-dense wavelength division multiplexing passive optical network using a single directly modulated laser (DML)was ...
Shunli QIU, Yi YANG, Rong HU
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Design and Implementation of a Passive Optical Network for a Small Town
Engineering ProceedingsThe increasing demand for high-speed internet and advanced digital services necessitates the deployment of robust and scalable broadband infrastructure, particularly in smaller urban and rural areas. This paper presents the design and implementation of a
Fatima Sapundzhi +5 more
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ICT Express, 2018 We propose a novel dynamic subcarrier allocation (DSCA) design for dual-band orthogonal frequency division multiple access passive optical network (DB-OFDMA-PON), supporting integrated fronthaul and backhaul services, given their stringent requirements ...
Yazan M. Allawi +5 more
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Simulation and Evaluation of Ethernet Passive Optical Network
Tikrit Journal of Engineering Sciences, 2013 This paper studies simulation and evaluation of Ethernet Passive Optical Network (EPON) system, IEEE802.3ah based OPTISM 3.6 simulation program. The simulation program is used in this paper to build a typical ethernet passive optical network, and to
Salah A. Jaro Alabady
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Availability Analysis of Different PON Models
Journal of Telecommunications and Information Technology, 2017 Due to the increasing demands of individual users, Passive Optical Networks (PON) are a promising technology for future broadband access networks. Reliable access to network services is a very important feature, so the availability of the connection is ...
Katarina Radosˇ, Ivan Rados
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Protection Schemes in HPON Networks Based on the PWFBA Algorithm
Sensors, 2022 In this paper, possibilities for network traffic protection in future hybrid passive optical networks are presented, and reasons for realizing and utilizing advanced network traffic protection schemes for various network traffic classes in these networks
Rastislav Róka +5 more
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Coherent Optical Interleaved SC-FDM Uplink Scheme for Long-Reach Passive Optical Network
IEEE Photonics Journal, 2016 In this paper, we propose a coherent optical interleaved single-carrier frequency-division multiplexing (CO-I-SC-FDM) uplink scheme for the long-reach passive optical network (LR-PON).
Ji Zhou +8 more
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MongoDB Database as Storage for GPON Frames
Sensors, 2020 This work is focused on creating an open-source software-based solution for monitoring traffic transmitted through gigabit passive optical network. In this case, the data are captured by the field-programmable gate array (FPGA) card and reassembled using
Martin Holik +5 more
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TecnoLógicas, 2010 In this work, we present an analysis of the Optical Passive Fiber Network by measurement of optical power and Optical Reflectometry in the time domine on a network installed in Medellín city.
Alejandro Correa-Muñoz +1 more
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