Results 11 to 20 of about 3,786 (224)

A survey on edge and fog nodes' placement methods, techniques, parameters, and constraints

IET Networks, Volume 12, Issue 5, Page 197-228, September 2023., 2023
Within Edge and Fog computing, edge and fog nodes must be optimally located at the network edge to minimise network's overall latency. This survey addresses all aspects of these nodes' placement problem. Literature on edge and fog nodes' placement are collected, filtered out and studied.
Samraa Adnan Al‐Asadi, Safaa O. Al‐Mamory   +1 more
wiley   +1 more source

Software‐Defined Networks for Optical Networks Using Flexible Orchestration: Advances, Challenges, and Opportunities

Journal of Computer Networks and Communications, Volume 2022, Issue 1, 2022., 2022
Optical networks offer a wide range of benefits to the telecommunication sector worldwide with their provision of higher bandwidth, which leads to faster data speed, longer transmission distance, and improved latency. Currently, the complexity associated with advancements in optical networks poses problems to network flexibility, reliability, and ...
Kenneth Nsafoa-Yeboah, Eric Tutu Tchao, Bright Yeboah-Akowuah, Benjamin Kommey, Andrew Selasi Agbemenu, Eliel Keelson, Mohammad Monirujjaman Khan, Gianluigi Ferrari   +7 more
wiley   +1 more source

A testbed and a simulation laboratory for training engineering students in optical access network technologies

Computer Applications in Engineering Education, Volume 29, Issue 6, Page 1892-1910, November 2021., 2021
Abstract Engineering profiles focused on next‐generation optical networks are gaining immense importance due to new emerging services and the amount of data expected in future network scenarios. In fact, not only are optical access networks leading to a major revolution in the network industry, but passive optical networks are the most widely deployed ...
Noemi Merayo, Juan C. Aguado, Ignacio de Miguel, Ramón J. Durán, Patricia Fernández, Rubén M. Lorenzo, Evaristo J. Abril   +6 more
wiley   +1 more source

A high bit rate free space optics based ring topology having carrier‐less nodes

IET Communications, Volume 15, Issue 11, Page 1530-1538, July 2021., 2021
Abstract A free space optics based ring topology that transmits full‐duplex data to four different nodes in the ring is proposed. The link is designed such that the four nodes do not require a local optical source to transmit the uplink data. A wavelength division multiplexed signal composed of four different wavelengths each modulated by the downlink ...
Jawad Mirza, Waqas A. Imtiaz, Abdulah Jeza Aljohani, Salman Ghafoor   +3 more
wiley   +1 more source

Semiconductor optical amplifiers in avionics [PDF]

, 2011
RSOAs have been demonstrated to operate within a WDM PON architectures over a >;60nm wavelength range with large path loss capabilities. Two RSOAs enable contiguous operation over the S, C and L bands; results indicate clearly that WDM architectures ...
Andonovic, Ivan, Johnstone, Walter, Kelly, Anthony, Michie, Walter, Murphy, Eoin, White, Henry   +5 more
core   +1 more source

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

, 2015
Increasing bandwidth demand drives the need for next-generation optical access (NGOA) networks that can meet future end-user service requirements.
Bianchi, Alberto, Breuer, Dirk, Chen, Jiajia, Forzati, Marco, Grobe, Klaus, Lannoo, Bart, Machuca, Carmen Mas, Point, Jean-Charles, Skubic, Bjorn, Verbrugge, Sofie, Weis, Erik, Wosinska, Lena   +11 more
core   +2 more sources

Combo-PON OLT Transceiver Using Photonic Integration Technology

IEEE Photonics Journal, 2022
In this work, a prototype of 10G Combo-PON OLT transceiver based on photonic integrated circuits (PIC) is proposed and demonstrated. Key optical components for Combo-PON OLT transceiver, including high-power DFB laser, micro-ring modulator and WDM, have ...
Hongqing Ding, Zeru Wu, Yuanfeng Mao, Xu Wang, Qihong Wu, Yuanbing Cheng, Yanbo Li, Tianhai Chang, Ruiqiang Ji   +8 more
doaj   +1 more source

Energy-efficiency improvements for optical access [PDF]

, 2014
This article discusses novel approaches to improve energy efficiency of different optical access technologies, including time division multiplexing passive optical network (TDM-PON), time and wavelength division multiplexing PON (TWDM-PON), point-to ...
Anthapadmanabhan, P, Chow, H, Kanonakis, K, Lannoo, Bart, Lee, K-L, Saliou, F, Suvakovic, D, Vetter, P, Yin, Xin   +8 more
core   +1 more source

Channel Characteristics Based Adjustable Fingerprint for Identity Authentication in WDM-PON With Deep Neural Networks

IEEE Photonics Journal, 2022
Wavelength-division-multiplexed passive optical network (WDM-PON) has been widely deployed for the high-speed, reliable transmission and low-cost properties. The physical layer identity authentication in WDM-PON becomes increasingly prominent.
Kun Wu, Hongxiang Wang, Yuefeng Ji
doaj   +1 more source

Wavelength switched hybrid TDMA/WDM (TWDM) PON: a flexible next-generation optical access solution [PDF]

, 2012
In this paper, we propose the system concepts of a next-generation wavelength switched hybrid time division multiple access and wavelength division multiplexing (TWDM) passive optical network (PON) architecture. In this architecture, wavelength selective
Colle, Didier, Demeester, Piet, Dixit, Abhishek, Lannoo, Bart, Pickavet, Mario   +4 more
core   +2 more sources