scholarly journals Comparative analysis of layered structures in empirical investor networks and cellphone communication networks

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Peng Wang ◽  
Jun-Chao Ma ◽  
Zhi-Qiang Jiang ◽  
Wei-Xing Zhou ◽  
Didier Sornette
Keyword(s):  
Comparative Analysis ◽  
Communication Networks ◽  
Layered Structures

scholarly journals Comparative Analysis of Signal Strength of Some Cellular Networks in Port Harcourt, Nigeria.

2018 ◽  
Vol 2 (6) ◽  
Author(s):  
Bodunrin Isa Bakare ◽  
T. E. Ngeri ◽  
Sunny Orike
Keyword(s):  
Comparative Analysis ◽  
Cellular Networks ◽  
Communication Networks ◽  
Measurement Data ◽  
Path Loss ◽  
Signal Strength ◽  
Received Signal Strength ◽  
Least Square ◽  
Port Harcourt ◽  
Rivers State

This paper presents a comparative analysis of the Received Signal Strength (RSS) measurement of some cellular networks in Port Harcourt, Nigeria. Measurements were carried out using Radio Frequency Signal Tracker to determine received signal of three selected Global System for Mobile Communication networks (MTN, Airtel and Globalcom) at five strategic locations (Borokiri, Old Government Residential Area, Rivers State University, Ikwerre Road and Aba Road) in Port Harcourt, Rivers State. From the results obtained it shows that in Borokiri MTN has the highest received signal strength of -61.9dBm, Old GRA Airtel has the highest received signal strength of -61.3dBm, RSU and Ikwerre Road Globalcom has the highest received signal strength of -68.3dBm and -64.9dBm respectively while for Aba Road MTN has the highest received signal strength of -63.0dBm. In all the measurements, the results were analyzed using least square method and standard deviation to approximate the measurement data and path loss model was developed using ordinary least square regression technique.

Definition of General Requirements for Graph Visualization Software

2009 ◽  
Vol 38 (38) ◽  
pp. 168-179
Author(s):  
Vitaly Zabiniako ◽  
Pavel Rusakov
Keyword(s):  
Comparative Analysis ◽  
Communication Networks ◽  
Traffic Control ◽  
Information Sources ◽  
Graph Visualization ◽  
Tabular Form ◽  
Visualization Software ◽  
Main Components ◽  
Definition Of ◽  
General Graphs

Definition of General Requirements for Graph Visualization SoftwareThis paper contains comparative analysis of some modern graph visualization packages (for example, "Graphviz", "yFiles", "Wilmascope 3D", etc) in order to outline and characterize general requirements that could be useful for development of new graph visualization software (GVS). Relations between identified requirements and necessary related components of potential GVS are being derived. To precise these requirements there were studied an additional theoretical information sources. The main goal of this research is to improve development of new GVS providing mechanism of design templates for different kinds of tasks (for example - visualization of general graphs, diagrams, routing and communication networks, etc). The result of this research is presented in tabular form. That allows identifying the set of main components of new frameworks at early stages of software development (starting with a list of desired features and transforming it into a list of necessary components). An example of using such table in DBMS MS Access environment is provided in a study of development of imaginary GVS as a part of generic air traffic control routing system. There is made conclusion about the achieved results. It is presented information about future researches in this field.

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