Results 41 to 50 of about 31,060 (300)

Design and Implementation of a Passive Optical Network for a Small Town

Engineering Proceedings
The 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, Boyko Zarev, Slavi Georgiev, Snezhinka Zaharieva, Metodi Popstoilov, Meglena Lazarova   +5 more
doaj   +1 more source

Optimal dynamic subcarrier allocation for dual-band OFDMA-PON supporting integrated fronthaul and backhaul in 5G networks

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, Geun Young Kim, Jungbum Cho, Ahmad G. Reza, Yongsoo Na, June-Koo Kevin Rhee   +5 more
doaj   +1 more source

A comparison of modulation formats for passive optical networks

Optics Express, 2011
The sensitivity of the four-dimensional modulation format, polarization-switched quadrature phase shift keying (PS-QPSK), is compared with polarization division multiplexed QPSK (PDM-QPSK), binary phase shift keying (PDM-BPSK) and 8-ary quadrature amplitude modulation (PDM-8QAM) at a constant bitrate (12.5 Gbit/s) using a preamplified signal to improve
Domaniç, Lavery, Carsten, Behrens, Seb J, Savory   +2 more
openaire   +2 more sources

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Performance of wimax in radio over fiber gigabit passive optical network architecture [PDF]

, 2013
The integration of wireless and optical network is a promising solution to support the growth of traffic demands in future access networks. The integrated network would provide high bandwidth (BW), flexibility, mobility and reliability.
M. Zin, Nor Affida
core  

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

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
doaj   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Análisis de la Expansión de Redes de Acceso Pasivas de Fibra Óptica Gpon y Bpon en la Ciudad de Medellín

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, Claudia M. Serpa-Imbett   +1 more
doaj  

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, Fei Xu, Erkun Sun, Tiantian Zhang, Zhenshan Zhang, Mengqi Guo, Xizi Tang, Zhansheng Wang, Yaojun Qiao   +8 more
doaj   +1 more source