Scientific Study of Types of Network Architecture and Discussing Advantages Disadvantages

2022 ◽  
Vol 71 (1) ◽  
pp. 01-05
Author(s):  
Robby Rahim
Keyword(s):  
Network Architecture ◽  
Scientific Study ◽  
Network Infrastructure ◽  
Number Of Components

This paper will explain the theory of network architecture. The concept of network architecture is the combination of different layers of the network infrastructure. Each layer has specific roles. This paper will also discuss about the challenges in the implementation of any type of network architecture. The two types of networks will be discussed. There are number of components which are used to implement the network

Efecto de la técnica de modulación M-QAM para una infraestructura de red convergente Radio sobre Fibra (RoF)

2021 ◽  
Vol 39 (1) ◽  
pp. 66-85
Author(s):  
Cristian David Quilindo Méndez ◽  
Eduar Fernando Hoyos Zúñiga ◽  
Gustavo Adolfo Gómez Agredo
Keyword(s):  
Network Architecture ◽  
Optical Network ◽  
Passive Optical Network ◽  
Frequency Division Multiplexing ◽  
Transmission Power ◽  
Frequency Division ◽  
Network Infrastructure ◽  
Available Bandwidth ◽  
Simulation Methodology ◽  
Qam Modulation

The objective of the research is to analyze, at the simulation level, the effect of the M-Quadrature Amplitude Modulation (M-QAM) technique, in the downlink, for a converged Radio over Fiber (RoF) network infrastructure, implementing the Ortho-gonal Frequency Division Multiplexing (OFDM) technique and the Passive Optical Network architecture, with 10 Gbps capa-city (XG-PON). The evaluation of the effect of the M-QAM modulation technique was done through a pre-established simulation methodology and using the optsim sof-tware for the network model and tests. In the results of the research, the increase of the order of M-QAM modulation for a con-verged OFDM-RoF network infrastructure allows to represent more bits per symbol, however, it requires a higher transmission power. The conclusion derives in the pos-sibility of developing a robust converged OFDM-RoF network infrastructure of XG-PON type, implementing the M-QAM tech-nique, since it efficiently uses the available bandwidth.

scholarly journals Assessment of a Network Infrastructure: A Basis for New Network Topology Proposal

2019 ◽  
Vol 9 (2) ◽  
pp. 808-812
Keyword(s):  
Quality Of Service ◽  
Fault Tolerance ◽  
Network Topology ◽  
Network Architecture ◽  
Computer Network ◽  
Research Effort ◽  
Private Institutions ◽  
Network Infrastructure ◽  
Use Of Technology

Colegio de Sebastian (CDS), being a young academic and business entity, is in the process of developing its operations to serve its clients' satisfaction. This means that it must adapt itself to changes and improvements to survive the tough competition of private institutions. Effective communication in any business is a vital consideration that an owner must prioritize. Most growing businesses today are inclined to the use of technology to enhance the effectivity of their communication, and this entails the structuring of their computer network. In line with this, an assessment of the current network infrastructure was done at CDS to determine the need for new network topology. Through conducted surveys, CDS' network infrastructure was found out to have problems in terms of its topology that stems out to some issues like connectivity intermittence. To be able to provide a solution to such problem, a VLAN –based topology was proposed that includes topology that aims to achieve the four characteristics of good network architecture which are fault tolerance, scalability, quality of service and security. This research effort is to emphasize that properly planning an institution's network infrastructure is essential to serve its purpose optimally.

scholarly journals A Great Approach for Medium Size Hospital Network Infrastructure Architecture

2021 ◽  
Vol 9 (9) ◽  
pp. 1440-1443
Author(s):  
Kankan Dev
Keyword(s):  
Data Security ◽  
Network Architecture ◽  
Virtual Private Network ◽  
Network Size ◽  
Remote Access ◽  
Primary Data ◽  
Medium Size ◽  
Hospital Organization ◽  
Network Infrastructure ◽  
Private Network

Abstract: To get first-hand experience for setting up a network infrastructure in a medium size hospital to manage the patient’s services, check-ups, follow-up plans from different parts of the hospital primes and store the data into the secured and safe manner in the database and use the data whenever required from the management team for their references. The network architecture based on the concept of the Three- layer network architecture combination of Mesh topology & Bus topology taking into the consideration of the primary data security, remote access to the network, size of the hospital organization, cost-effective, user-friendly and most importantly scalability required in the network architecture for future changes based on the size of the database, utilization of applications remotely, and for security of the data, changing technology etc. The goal of any network architecture is to protect the DATA from any attacks both internally and externally. For internal DATA security it is protected through various user permissions in different layers in the network for the end users. For Outside threat VPN tunnel, Policies, traffic filtering configured at the firewall level. Keywords: HIS-Hospital Information System, VPN- virtual private network tunnel, VLAN- Virtual LAN, HL7- Health Level Seven International, L3- Layer 3, ISP- Internet service provider

scholarly journals Results and Achievements of the ALLIANCE Project: New Network Solutions for 5G and Beyond

2021 ◽  
Vol 11 (19) ◽  
pp. 9130
Author(s):  
Davide Careglio ◽  
Salvatore Spadaro ◽  
Albert Cabellos ◽  
Jose Antonio Lazaro ◽  
Pere Barlet-Ros ◽  
...  
Keyword(s):  
Optical Networks ◽  
Mobile Communications ◽  
Network Architecture ◽  
Optical Network ◽  
High Capacity ◽  
Network Infrastructure ◽  
Network Function ◽  
Radio Access ◽  
User Data ◽  
Computational Resources

Leaving the current 4th generation of mobile communications behind, 5G will represent a disruptive paradigm shift integrating 5G Radio Access Networks (RANs), ultra-high-capacity access/metro/core optical networks, and intra-datacentre (DC) network and computational resources into a single converged 5G network infrastructure. The present paper overviews the main achievements obtained in the ALLIANCE project. This project ambitiously aims at architecting a converged 5G-enabled network infrastructure satisfying those needs to effectively realise the envisioned upcoming Digital Society. In particular, we present two networking solutions for 5G and beyond 5G (B5G), such as Software Defined Networking/Network Function Virtualisation (SDN/NFV) on top of an ultra-high-capacity spatially and spectrally flexible all-optical network infrastructure, and the clean-slate Recursive Inter-Network Architecture (RINA) over packet networks, including access, metro, core and DC segments. The common umbrella of all these solutions is the Knowledge-Defined Networking (KDN)-based orchestration layer which, by implementing Artificial Intelligence (AI) techniques, enables an optimal end-to-end service provisioning. Finally, the cross-layer manager of the ALLIANCE architecture includes two novel elements, namely the monitoring element providing network and user data in real time to the KDN, and the blockchain-based trust element in charge of exchanging reliable and confident information with external domains.

scholarly journals Software defined network emulation with OpenFlow protocol

2020 ◽  
Vol 9 (1) ◽  
pp. 70
Author(s):  
Tsehay Admassu Assegie
Keyword(s):  
Network Architecture ◽  
Cost Effective ◽  
Software Defined Network ◽  
Network Emulation ◽  
Network Infrastructure ◽  
Open Flow ◽  
Dynamic Provisioning ◽  
Software Program ◽  
Entire Network

In software defined network the network infrastructure layer where the entire network devices, like switches and routers reside is connected with the separate controller layer with the help of standard called OpenFlow. The open flow standard enables different vendor devices like juniper, cisco and Huawei switch to connect to the controller or a software program. The software program controls and manages the network devices. Therefore, software defined network architecture makes the network flexible, cost effective and manageable, enables dynamic provisioning of bandwidth, dynamic scale out and dynamic scale in compared to the traditional network. In this study, the architectures and principles of software defined network is explored by emulating the software defined network employing a mininet.

Review of Psychology: A scientific study of human behavior. 5th ed.

1979 ◽  
Vol 24 (11) ◽  
pp. 947-947
Author(s):  
RICHARD A. KASSCHAU
Keyword(s):  
Human Behavior ◽  
Scientific Study

Contents of Western Sociology of Religion as a Science and Educational Discipline

2002 ◽  
pp. 106-110
Author(s):  
Liudmyla O. Fylypovych
Keyword(s):  
Nineteenth Century ◽  
International Society ◽  
Sociology Of Religion ◽  
Scientific Study ◽  
Late Nineteenth Century ◽  
The West ◽  
Late Nineteenth

Sociology of religion in the West is a field of knowledge with at least 100 years of history. As a science and as a discipline, the sociology of religion has been developing in most Western universities since the late nineteenth century, having established traditions, forming well-known schools, areas related to the names of famous scholars. The total number of researchers of religion abroad has never been counted, but there are more than a thousand different centers, universities, colleges where religion is taught and studied. If we assume that each of them has an average of 10 religious scholars, theologians, then the army of scholars of religion is amazing. Most of them are united in representative associations of researchers of religion, which have a clear sociological color. Among them are the most famous International Society for the Sociology of Religion (ISSR) and the Society for Scientific Study of Religion (SSSR).

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