scholarly journals Statistical Modeling of Antenna: Urban Equipment Interactions for LTE Access Points

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Xin Zeng ◽  
Alain Sibille
Keyword(s):  
Wireless Networks ◽  
Statistical Analysis ◽  
Performance Indicators ◽  
Access Point ◽  
Network Capacity ◽  
Wireless Access ◽  
Small Cells ◽  
Large Network ◽  
Real Situation ◽  
Definition Of

The latest standards for wireless networks such as LTE are essentially based on small cells in order to achieve a large network capacity. This applies for antennas to be deployed at street level or even within buildings. However, antennas are commonly designed, simulated, and measured in ideal conditions, which is not the real situation for most applications where antennas are often deployed in proximity to objects acting as disturbers. In this paper, three conventional wireless access point scenarios (antenna-wall, antenna-shelter, and antenna lamppost) are investigated for directional or omnidirectional antennas. The paper first addresses the definition of three performance indicators for such scenarios and secondly uses such parameters towards the statistical analysis of the interactions between the wall and the antennas.

scholarly journals Urban Air Mobility—A 6G Use Case?

2021 ◽  
Vol 2 ◽  
Author(s):  
Shuja Ansari ◽  
Ahmad Taha ◽  
Kia Dashtipour ◽  
Yusuf Sambo ◽  
Qammer H. Abbasi ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Performance Indicators ◽  
Mobile Network ◽  
Key Performance Indicators ◽  
Network Capacity ◽  
Base Station ◽  
Transport Systems ◽  
Urban Air ◽  
Aerial Vehicles ◽  
Aerial Transport

The increasing popularity of Unmanned Aerial Vehicles (UAV) has resulted in exponential growth of the market owing to numerous applications that have been facilitated by advances in battery technology and wireless communications. Given the successes of UAVs thus far, researchers are already gearing towards aerial transport systems that consist of dense deployment of both UAVs and Personal Aerial Vehicles (PAVs) with human passengers. Although the fifth-generation mobile network (5G) key performance indicators have been optimised to support drone use cases for both high data rates and low latency applications, future aerial transport systems will require stricter network key performance indicators to support the expected massive deployment of aerial vehicles taking into account network capacity and distance between the base station and the aerial vehicles, among others. In this article, we present our perspective, vision, architecture, requirements and key performance indicators for future aerial wireless networks supported by 6G for Urban Air Mobility (UAM). Furthermore, we review key enabling technologies and discuss future challenges for incorporating aerial wireless networks in 6G.

Aplikasi Manajemen Dan Monitoring Untuk Keamanan Pada Jaringan Hotspot

2017 ◽  
Vol 15 (2) ◽  
pp. 33
Author(s):  
Sadam Husen ◽  
Raesul Azhar
Keyword(s):  
Wireless Networks ◽  
Service Provider ◽  
Research Method ◽  
Internet Access ◽  
Access Point ◽  
Remote Access ◽  
Wireless Access ◽  
Internet Service ◽  
Illegal Activities ◽  
Network Administrators

STMIK Bumigora has five internet hotspot access point which can be used by students. Fifth hotspot wireless access point includes faculty, labs, students, faculty and for management purposes. The use of wireless networks for internet access led to the illegal activities that can not be monitored by the network administrator. Activity is mainly on the use of the router that serves as a proxy router connected directly to the ISP (Internet Service Provider). Illegal activities are often done by the students is trying to log into any network devices using bruteforce method. Techniques used include using remote access such as ssh, telnet and ftp. In addition, the activity of port scanning is often performed by the students to observe the security gaps that are still weak in a hotspot, especially at the port still open on the network. To overcome this problem, researchers built an application that is capable of managing and monitoring security hotspots making it easier for network administrators to take action against such illegal activities. Research method used is SDLC, in which the systemis intended to develop a system that has existed previously in PUSTIK STMIK Bumigora Mataram

Assessment of the Culture of Care working with laboratory animals by using a comprehensive survey tool

2021 ◽  
pp. 002367722110144
Author(s):  
Thomas Bertelsen ◽  
Kirstine Øvlisen
Keyword(s):  
Performance Indicators ◽  
Essential Elements ◽  
Laboratory Animals ◽  
Survey Tool ◽  
Culture Of Care ◽  
Eu Directive ◽  
Comprehensive Picture ◽  
Comprehensive Survey ◽  
Definition Of ◽  
The Eu

The term Culture of Care, within the scientific community using laboratory animals, is being used more and more frequently after it was introduced in the EU Directive 2010/63/EU, where it is phrased as a ‘climate of care’, which became effective in national legislation from January 2013. However, there is a risk that the term could become a meaningless phrase if no agreed local definition of the term exists at the animal facility (called establishment in the EU Directive). This paper presents a comprehensive survey tool that provides a means to describe what the Culture of Care in an establishment looks like. The tool is one of the elements that can contribute to the overall picture of the culture; however, it cannot stand alone. Together with an evaluation of the effectiveness of the Culture of Care (e.g. key performance indicators) and a description of the outcomes and achievements in terms of animal welfare and the 3Rs (Replace, Reduce, Refine), the survey tool will constitute a comprehensive picture. The survey tool offers a multilevel and comprehensive view of different subcultures, presenting details on mindset and behaviour of the employees and the different relations within the culture, thus enabling the initiation of improvement projects if required. The tool addresses essential elements of a co-operative culture in terms of what we think, what we do and how we work together.

Systematic Literature Review on Smart Mobility: A Framework for Future “Quantitative” Developments

2021 ◽  
pp. 088541222199424
Author(s):  
Mauro Francini ◽  
Lucia Chieffallo ◽  
Annunziata Palermo ◽  
Maria Francesca Viapiana
Keyword(s):  
Cluster Analysis ◽  
Literature Review ◽  
Systematic Literature Review ◽  
Performance Indicators ◽  
State Of The Art ◽  
Measurement Model ◽  
Broader Impacts ◽  
Research Goal ◽  
Smart Mobility ◽  
Definition Of

This work aims to reorganize theoretical and empirical research on smart mobility through the systematic literature review approach. The research goal is to reach an extended and shared definition of smart mobility using the cluster analysis. The article provides a summary of the state of the art that can have broader impacts in determining new angles for approaching research. In particular, the results will be a reference for future quantitative developments for the authors who are working on the construction of a territorial measurement model of the smartness degree, helping them in identifying performance indicators consistent with the definition proposed.

Future wireless access small cells and heterogeneous deployments

ICT 2013 ◽  
2013 ◽  
Author(s):  
Erik Dahlman ◽  
Konstantinos Dimou ◽  
Stefan Parkvall ◽  
Hugo Tullberg
Keyword(s):  
Wireless Access ◽  
Small Cells

scholarly journals Capacity Analysis and Optimization in Heterogeneous Network with Adaptive Cell Range Control

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Xinyu Gu ◽  
Xin Deng ◽  
Qi Li ◽  
Lin Zhang ◽  
Wenyu Li
Keyword(s):  
Heterogeneous Network ◽  
Selection Procedure ◽  
Mobile Network ◽  
Network Capacity ◽  
Network Evolution ◽  
Range Extension ◽  
Traffic Load ◽  
System Level ◽  
Small Cells ◽  
Cell Range

As an attractive means of expanding mobile network capacity, heterogeneous network is regarded as an important direction of mobile network evolution. To increase the capacity of, for example, hot spots, a typical scenario in heterogeneous network is that the coverage areas of low power nodes (LPNs) are overlapped with macrocell. To increase the utilization of small cells generated by LPNs, cell range extension (CRE) is used to extend the coverage of the small cells by adding cell specific offset (CSO) to small cells during cell selection procedure. The value of CSO, however, needs to be set carefully. In this paper, the capacity of users in macrocells, users in small cells, and users in range extension areas is analyzed thoroughly in conditions with and without CRE. Based on the analysis, an adaptive CSO updating algorithm is proposed. The proposed algorithm updates the CSO value periodically by predicting the overall capacity and a new CSO value is selected which can give the optimal overall capacity. The proposed algorithm is evaluated by system-level simulations. Simulation results indicate that the proposed algorithm can ensure a nearly optimal performance in all tested traffic load situations.

scholarly journals Multivariable statistical analysis for enhancing performance indicators in direct contact membrane distillation

2018 ◽  
Vol 113 ◽  
pp. 45-56
Author(s):  
Bader Bin Ashoor ◽  
Adewale Giwa ◽  
Shadi W. Hasan ◽  
Taha B.M.J. Ouarda ◽  
Adel Mhamdi
Keyword(s):  
Statistical Analysis ◽  
Performance Indicators ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Direct Contact Membrane Distillation

scholarly journals MANAGEMENT OF FINANCIAL AND ECONOMIC SECURITY OF THE ENTERPRISE (ON THE EXAMPLE OF ALTAIR + LLC)

2020 ◽  
Vol 11 (87) ◽  
Author(s):  
Leonid Katranzhy ◽  
◽  
Kateryna Novik ◽  
Keyword(s):  
Performance Indicators ◽  
Financial Stability ◽  
Scientific Literature ◽  
External Environment ◽  
Integrated Approach ◽  
Economic Security ◽  
Huge Number ◽  
Definition Of ◽  
High Level ◽  
Important System

The theoretical bases of essence of management of financial and economic safety of the enterprise are investigated. It is noted that in the scientific literature there is a huge number of opinions on the essence of the concept of financial and economic security, which is quite new in domestic economics. It is established that financial and economic security is an important system for ensuring the resilience of the enterprise to the changing external environment, and therefore consists of many effectively interconnected elements. The high level of financial and economic security of the enterprise is due only to a well-thought-out concept that operates at a particular enterprise and includes means, measures and methods to ensure financial stability and economic development of the enterprise. The process of managing the financial and economic security of the enterprise is divided into several successive stages: clear definition of the interests of the enterprise, forecasting possible threats, assessing the level of financial and economic security of the enterprise and comparing it with the normative, budgeting of financial and economic security, feedback in the implementation of measures by adjusting them. It is revealed that the integrated approach in the assessment of the level of financial and economic security of the enterprise is the most acceptable for domestic enterprises due to the coverage of a large number of important performance indicators in one integrated indicator. We have improved the method of assessing the level of financial and economic security of the enterprise, proposed by scientists N.V. Bondarchuk and M. Humenchuk, in accordance with the specifics of the activities of Altair + LLC. Along with the financial gaps, which these scientists propose to analyze in the process of assessing the financial and economic security of the enterprise, we proposed to analyze the technical, organizational, personnel and integration characteristics. It has been proved that the improved methodology is effective and allows to objectively assess the financial and economic security of Altair + LLC, as well as to identify reserves for improving the company.

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