Local SDH transmission network design

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Xie Wenjun
Keyword(s):  
Communication Network ◽  
Information Society ◽  
Optical Network ◽  
Transmission Band ◽  
Transmission Network ◽  
Global Village ◽  
Fiber Network ◽  
Time Service ◽  
Technology System ◽  
Set Up

We know that today's society is the information society. The highly developed information society requires thatthe communication network can provide a wide variety of telecommunication services. The amount of informationtransmitted, exchanged and processed through the communication network will increase, which requires the moderncommunication network to be digitalized, integrated, intelligent and personalized. The transmission system is animportant part of the communication network, directly restricting the development of the communication network.One of the most important developments in the world to develop the information superhighway, with one of thekey is to set up a large capacity transmission fiber network, continuously improve the transmission line on thesignal rate, widening the transmission band. It is like expanding capacity to accommodate a large number of traffi cin highways. At the same time the user wants the transmission network to have a worldwide interface standard, toaccess to global village, in where every user can easily communicate anytime and anywhere. Synchronous DigitalHierarchy (SDH) is a comprehensive information transmission network that integrates multiplexing, line transmissionand switching functions and is operated by a unifi ed network management system. It is a synchronous informationtransmission network developed by Bell Communication Technology Research Institute’s optical network (SONET).The International Telegraph and Telephone Advisory Committee (now ITU-T) received the SONET concept in 1988and renamed it SDH, making it a general technology system that applies not only to fiber but also to microwaveand satellite transmission. It is applied for eff ective management of network, real-time service monitoring, dynamicnetwork maintenance, interoperability between different vendors and other functions, greatly improves networkresource utilization, reduce management and maintenance costs, flexible and reliable and efficient networkoperation and maintenance. So it is in the center of attention in world's information fi eld of transmission technologydevelopment and application.

Deep Learning based Optical Network Layer Recovery Mechanism for Critical Services of Power Communication Network

2021 ◽  
Author(s):  
Geng Zhang ◽  
Yanan Wang ◽  
Huixia Ding ◽  
Wei Gao ◽  
Kaiqiang Gao ◽  
...  
Keyword(s):  
Communication Network ◽  
Deep Learning ◽  
Optical Network ◽  
Network Layer ◽  
Recovery Mechanism

scholarly journals TQM Practice and Institution Innovation in China

2014 ◽  
Vol 1 (1) ◽  
pp. 60-64
Author(s):  
Neng-Quan Wu ◽  
Shu-Zhi Zhu
Keyword(s):  
Product Quality ◽  
Social Institutions ◽  
World Market ◽  
Planning System ◽  
Traditional Management ◽  
Institution Innovation ◽  
Technology System ◽  
Institutional System ◽  
Set Up

Abstract Quality is the language which helping product enters the world market. TQM, instead of traditional management, has been growing into the management mode of modern company. In last 10 years, TQM has made great progress in the whole world, but it did not get significant achievements in China. Although the exports from China always keep the image of “cheap and good” in international market, the qualified ratio of products calculated in domestic market is only around 75% and inferior and fake products are often exposed. Therefore, China needs to learn from the TQM experience and practice of advanced countries both in micro and macro field. The process from traditional management to TQM is based on not only corporate technology system, but also on social and institutional system. Our conclusion from China's case is that the international competitive advantage of individual company came from excellent product quality, the excellent product quality is based on excellent TQM practice, and the excellent TQM practice rooted in whole country's macro institutional system. Now, China is still in the stage of transforming public-owned-dominated planning system to individual-owned-dominated market-oriented system. There are many political and economic and social institutions and their policy, regulation, even ideology need to be innovated. Only by doing this, China's companies could follow the foreign partner's step, set up their long-term strategy and share profit with their employees and implement TQM completely to improve their international competitiveness.

scholarly journals PERANCANGAN DAN IMPLEMENTASI SISTEM INFORMASI DESA WISATA KANDRI BERBASIS WEB

CCIT Journal ◽  
2016 ◽  
Vol 9 (3) ◽  
pp. 276-289
Author(s):  
Suprihadi Suprihadi ◽  
Agustinus Fritz Wijaya ◽  
Richard Gordon Mayopu
Keyword(s):  
Information System ◽  
Rural Communities ◽  
System Development ◽  
Technology System ◽  
Central Java ◽  
Online Sales ◽  
Tourist Village ◽  
Marketing Tool ◽  
Business Entities ◽  
Set Up

Kandri is Gunungpati administrative area in the district, which is located in the city of Semarang in Central Java province which have Kreo Caves Nature Area. The tourist area has now been developed with the construction of dam Artificial Jatibarang which was completed in 2014. The reservoir has sunk acres of farmland, resulting in most of the Kandri citizens lose their livelihoods as farmers, and switch to the efforts in the field of tourism. Kandri rural communities in the development of a tourist village has set up a group called Pokdarwis tourism awareness in the form of a tourism cluster. The tourism cluster not yet have an information system that is capable of managing a data member, as well as a means of product promotion and online sales. This research aims to design a cluster of business information systems, and implement into web technology. System development method used is prototype models. The information system is implemented using the programming language PHP and CodeIgniter framework with a MySQL database. Results of this research is an e-commerce information system that features business profile information management, resource development and asset cluster members. These systems also use social plugins that like facebook as a marketing tool products. Thus, the information system can be used as an online store business clusters, media promotion, and data center can yield information about the development of the classification of business entities SME cluster members, so it can be used by cluster administrators and stakeholdesr in monitoring the business development of its members.

scholarly journals Extinction Ratio and the Fiber Optic Transmission Networks

2021 ◽  
Vol 12 (6) ◽  
pp. 2244-2252
Author(s):  
Ved Nath Jha, Supriya Rani, Ved Nath Jha
Keyword(s):  
Optical Fiber ◽  
Fiber Optic ◽  
Optical Network ◽  
Extinction Ratio ◽  
Wavelength Division Multiplex ◽  
Single Mode ◽  
Fiber Amplifier ◽  
Single Mode Fiber ◽  
Erbium Doped Fiber Amplifier ◽  
Fiber Network

In the fiber optic communication network for example,- FTTH, EPON, NBN, OTN and so on, the most important components are fiber length between transmitter and receiver point. So, to make, cheap and meaningful communication through optical fiber it must be required to calculate how and what amount of signal is transmitted with the given length of the fiber. Finally, it is said that the optical fiber network have several limitations like extension ratio. So, it is necessary to investigate its affect on the performance of the Optical Network. This research is based on simulation by OptiSystem 0.17 on the basis of Dense wavelength division multiplex (DWDM) technology, Erbium Doped Fiber Amplifier (EDFA), dispersion Compensating Fiber (DCF) and single mode fiber of length 50–100 km.

scholarly journals White Rabbit Multi-Point Time Distribution Network

2021 ◽  
Author(s):  
Erik Dierikx ◽  
Yan Xie ◽  
Adrian Savencu ◽  
José Lopez ◽  
José Luis Gutiérrez
Keyword(s):  
Optical Fiber ◽  
Time Distribution ◽  
Performance Study ◽  
Delay Compensation ◽  
Fiber Network ◽  
Precision Time ◽  
Set Up ◽  
Redundant Operation ◽  
Master Clock ◽  
Priority Algorithm

A nanosecond-accuracy, scalable, multi-point time- and frequency dissemination has been set up in an existing DWDM optical fiber network spanning approximately 200 km, using the White Rabbit (WR) Precision Time Protocol (PTP). Presented novelties in this paper are: a performance study of 5 cascaded WR switches allowing a wide fan-out; reference delay compensation ensuring that the time received by the user is synchronized with the reference timescale within a few nanosecond offset; experiments with a master clock priority algorithm for redundant operation and experimental results of hold-over performance.

scholarly journals 1146Assessing the uncertainty around age-mixing patterns in HIV transmission inferred from phylogenetic trees

2021 ◽  
Vol 50 (Supplement_1) ◽  
Author(s):  
Peter Nyasulu
Keyword(s):  
Phylogenetic Trees ◽  
Hiv Transmission ◽  
Age Difference ◽  
Transmission Network ◽  
Age Group ◽  
Younger Women ◽  
Prevention Interventions ◽  
Younger Men ◽  
Mixing Patterns ◽  
Set Up

Abstract Introduction Understand age-mixing patterns in HIV transmission is a key to design and implement HIV prevention interventions. As such, the use of phylogenetic tree seems promising since this approach is based on data from a transmission network. Methods Through a simulation study, we used transmission clusters computed from phylogenetic trees to investigate age-mixing patterns. From transmission clusters, we estimated a transmission network using pairings. We inferred measurements, which depict age-mixing patterns in transmission i.e. ‘proportions of men/women of a certain age-group paired with women/men of another age-group’, and mean, median, and standard deviation of average age difference between women/men with their respective pairs. We investigated the uncertainty around these measurements as a function of sampling coverage in different sequence missingness scenarios. Results According to the simulation set-up of age mixing in partnership, there are relationships, which are less likely and others highly likely. Explicitly, partnerships between younger men (<25 years) and older women (25 to 50 years) are less likely to happen in the sexual network, whereas partnership between younger women (<25 years) and older men (25 to 50 years) are more likely to happen as are age group relationship having intermediate magnitude in partnership. Conclusion Transmission clusters allow us to strive with more improved information regarding cross-generation transmission. It enables us to understand the importance of age mixing beyond describing the mean age difference, and that one needs to consider the variation of age differences between pairs of individuals as well as among the partners of a given individual.

Reliability of ROS Networked Mobile Robots

2019 ◽  
Vol 10 (1) ◽  
pp. 34-48
Author(s):  
Petri Tapani Oksa ◽  
Tarmo Lipping
Keyword(s):  
Operating System ◽  
Communication Network ◽  
Data Transmission ◽  
Mobile Robotics ◽  
Wireless Data ◽  
Coverage Area ◽  
Wireless Communication Network ◽  
Distribution Mode ◽  
Teleoperated Robots ◽  
Set Up

When working remotely with mobile robotics, a reliable wireless communication network becomes essential, especially in large operating regions. As most teleoperated robots rely on standard Wi-Fi communication, network behavior has a crucial effect on autonomous robot control. The main goal of this research is to measure and diagnose the system reliability, roaming issues, and bottlenecks of such data transmission. To study these significant factors, two measurement scenarios were conducted. Measurements consist of two Wi-Fi access points (AP) and a TurtleBot II robot used in two different system set-up configurations. In the first configuration, two APs are connected in bridge mode (LAN connection) and in the second configuration the APs are connected in WDS bridge (Wireless Data Distribution) mode. This article presents the results of Robot Operating System (ROS) IEEE 802.11 network measurements in roaming mode, in wireless bridge mode, and in an extended coverage area employed in WDS mode. Results of data transmission measurements, configurations, and evaluation of the entire system are also presented. All the measurements utilize the Open Cloud Robotic Platform (OpenCRP)1 an open-source cloud robotics ecosystem based on service-oriented PaaS architecture using the Ubuntu Linux operating system.

Applicability Analysis of PTN Technology in Henan Electric Power Transmission Network

2014 ◽  
Vol 644-650 ◽  
pp. 3667-3670
Author(s):  
Yi Yang ◽  
Jing Xian Lv ◽  
Shi Wen Wang ◽  
Pei Lin Cai ◽  
Wen Cui Li
Keyword(s):  
Communication Network ◽  
Electric Power ◽  
Power Transmission ◽  
Transmission Network ◽  
Data Service ◽  
Standard Process ◽  
Comprehensive Benefit ◽  
Business Requirements

Power communication network is an important part of an intelligent grid. This paper focuses on problems in Henan electric power transmission network, analyzes business requirements, technical routes and implementation of programmed areas, and summarizes the technical advantages of PTN technology in the standard process. Application of PTN technology in Henan electric power transmission network can solve the problem of surging data service. Fully taking into account the current and long term investment benefits, its comprehensive benefit is greater than a comprehensive upgrade of SDH equipment.

penggunakan mikrotik router sebagai jaringan server (yogi hadinakris, rafael rezki)

2020 ◽  
Author(s):  
yogi hadinakris
Keyword(s):  
Communication Network ◽  
Computer Users ◽  
The Internet ◽  
Interconnected Network ◽  
Network Computing ◽  
Bandwidth Management ◽  
The World ◽  
Set Up

Technology that utilizes computers that are increasingly being developed every day the more advanced. Communication, network computing pushes the formation of a fruit the developing network became a very complex and very powerful network widespread and scattered throughout the world and., known by interconnected network or more familiar is called the internet. to share infections Some computer users need the server to set up and managing the network, Microtixer has very complete features including: Firewall and Nat, Routing, Hotspot, PointtoPoint Tunneling Protocol, DNS server, DHCP server, Bandwidth management, and security. Using Microtic RouterOSOSaserver withools GUI (ghrafisuser interface) Winbox installed on the client can have an administrator in network settings / remotes running.

Creating Strategic Information for Oranizations with Structured Text

2008 ◽  
pp. 34-53 ◽  
Author(s):  
Roberto Penteado ◽  
Eric Boutin
Keyword(s):  
Information Society ◽  
Information Science ◽  
Information Overload ◽  
Competitive Advantages ◽  
Strategic Information ◽  
French School ◽  
Information Treatment ◽  
Set Up ◽  
Organizational Competence

The information overload demands that organizations set up new capabilities concerning the analysis of data and texts to create the necessary information. This chapter presents a bibliometrical approach for mining on structured text and data tuned to the French school of information science. These methodologies and techniques allow organizations to identify the valuable information that will generate better decisions, enabling and capacitating them to accomplish their mission and attain competitive advantages over the competition. The authors think that information treatment and analysis is the most critical organizational competence on our information society and that organizations and universities should take measures to develop this new field of research.

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