I have seen candidates struggling with the basic step of network simulation. Yes, I’m talking about creating a network topology. As discussed with a number of computer science researchers, I have found that many of them are confused regarding the topologies, such as selecting the software (NS2 or MATLAB) for topology creation, creating the static or dynamic topology, the number of node in a topology, number of connected nodes and many others.

Throughout my consulting career, I always wanted to be a help for research candidates, and today, I have decided to help them with the network topology.

Okay, let’s start this by asking:

What is a Network Topology?

I would like to go with the simplest answer; a Network Topology is a schematic arrangement of nodes and connecting lines (edges). There are two ways to define a topology:

i. Physical

ii. Logical

What is the logical way to represent the topology in MATLAB?

A network topology can be representing logically in the form of a Graph.

A graph is a collection of nodes and edges that represent relationships among different nodes or you can among different vertices or objects.

• Nodes are vertices (weighted or non-weighted) that correspond to objects.
• Edges are the connection lines between objects (vertices).
• The graph edges sometimes have Weights, which indicate the strength (or some other attribute) of each connection between the nodes. For example: In case of network routing weight represents the distance between the different nodes.

Fig. 1: Type of Topology

Now, moving to the most important question, i.e.

How to create the network topology using MATLAB?

In MATLAB creating a topology requires developing a graph that can be both undirected and directed graph.

Undirected Graph: This type of graph has nodes connected with edges. The edges have no direction and indicated a two way relationship that means each edge can be traversed in both directions.

Fig. 2: Undirected Graph

Directed Graph: A directed graph is a combination of nodes and connected edges with direction. The edges indicate one-way relationship, each edge can only be traversed in a single-direction.

                                                                Fig. 3: Directed Graph

Creating a Graph:

Adjacency matrix is the best way to implement a graph in MATLAB. The matrix is the combination rows and columns. In an adjacency matrix, the non-zero entries represent an edge between two nodes.

For example: We have to create a topology for nodes weighted as:

To create the graph, provide the follow input in MATLAB workplace:

A= [0 1 2; 1 0 3; 2 3 0];

node_name = {‘A’, ‘B’, ‘C’};

G= graph (A, node_names)

 

Fig: Weighted Undirected Graph

Now, represent the graph using edge list:

Edge                            Weight

(A, B)                             1
(A, C)                             2
(B, C)                             3

The edge list in the MATLAB is separated by column into source nodes and target nodes.

source_nodes = {‘A’, ‘A’, ‘B’};
target_nodes = {‘B’, ‘C’, ‘C’};
edge_weights = [1 2 3];

G = graph(source_nodes, target_nodes, edge_weights)

You can also construct the graph by creating the table with appropriate variables.

EdgeTable = table({‘A’ ‘B’; ‘A’ ‘C’; ‘B’ ‘C’},[1 2 3]’, …

    ‘VariableNames’,{‘EndNodes’,’Weight’});

G = graph(EdgeTable)

 You can also modify the existing graph and can add variety of functions to the topology by using the following commands:

addedge	Add one or more edges to the graph
rmedge	Remove one or more edge from the graph
addnode	Add one or more nodes to the graph
rmnode	Remove one or more node from the graph
findnode	Locate a specific node in the graph
findedge	Locate a specific edge in the graph
numnode	Find the number of nodes in a graph
subgraph	Extract Subgraph

 If you still have any confusion regarding the same, kindly post your comments below!

Completing your research paper is a huge task in itself, but your journey doesn’t end here, rather you can say it starts from here. Yes, your dissertation or thesis is the single manuscript that shapes your career and propels it towards higher direction. And, the ‘icing of the cake’ is when the world gets to know about your research work, reviews it and you get recognition in the world of intellectuals. A good way to showcase your talent is to publish your thesis in internationally acclaimed journals.

We all understand the importance of journal articles as it helps students, researchers, technocrats, faculties and intellectual people to learn about new researches and developments in various fields of studies. A research scholar can easily earn attention of his or her target reader by publishing the research paper on these kinds of journals. Now, you might be thinking how to get your journal article published? Well, you can pass on this headache to the experts. These professionals offer all kinds of assistance regarding the publication of the article. Be it literature, social studies or any branch of science, the professionals have customized help for every requirements. They will tell you how to each your targeted readers and will accustom you with the trending journals in sync with your field of study.

Apart from the aforementioned assistance, these professionals can also assist you in integrating software into your analysis. There are several upgraded software like IEEE available that provides correct layout for research work so that you can conduct the analysis easily. The professionals can help you in deciding which software to use and how to use it efficiently. So, if you want your journal to get published, then put all your worries aside and simply seek professional’s assistance.

MATLAB is an emerging matrix programming language that is used for different complex numerical calculations and simulations. The programming language is created by MathWorks Inc. and it allows functions and scripts to be used on an open source called the Octave. This open source is available on leading computer systems like Windows, Linux and Mac.

Simulink

Simulink is an additional package of MATLAB that supports graphical representations in the form of flow charts for various codes. MATLAB is a conducive environment for embedded system design and it can be used in a number of industries like engineering, statistics, economics, science, application deployment, mathematics, code generation, image processing, measurements and much more.

A real life example where MATLAB can be implemented effectively:

If a new automobile model is being created, the design engineers will have to finalize a prototype before the manufacturing implementation begins. As per traditional methods, they would opt for a pictorial representation to plan the model and execute the functions. However, if there were enormous amounts of efforts made to design the prototype as per certain specifications, the process becomes time-consuming and expensive. There is a lot of wastage in terms of the raw materials used in the failed prototype. Here, MATLAB facilitates the user to create a prototype using unique tools to implement the functionality of the model and simulate its working. The entire process of the prototype can be completed in an Integrated Development Environment (IDE) and this can save a lot of money as well as time for the engineers and the automobile company. This model that has been designed can be used as a template for designing future prototypes as it can be altered as per the new prototype requirements.

If you need assistance in your research related to such problems, you can always rely on MATLAB to provide efficient, timely and cost-effective solutions.

With the advent of technology, the nature of education has transformed drastically. From writing on paper to using software for writing, everything is now done on machines. Technology has also made its way in higher education like Master’s degrees. Students are asked to use their computers for research and writing as well as a lot of other aspects of education. For technical students, use of software and programming language in the research projects is a must. This is an indication of the best use of technology and many students find this phase difficult as implementation can be tricky if a student does not come from a technical background.

In order to make life easier for such students, many services offer the implementation of J2EE in your research projects. They have the technical expertise and the knowledge to use the programming language aptly in your thesis and they do the same at affordable costs as well. Probably students would spend more time and money in understanding the process but these companies are so thorough with their technical skills that they immediately help you out without taking any extra time.

The experts give you all the information you need about J2EE/Java. They support you in the implementation of these programming languages within your research projects and also answer all your queries that you may have along the way. The experts also give you access to the latest modifications and versions of the software so that you are well-updated with the latest happenings in Java. The technicians focus on the complete life cycle of the project and help you with end to end solutions for software implementation.

If you are worried about the implementation of J2EE in your research projects, set aside all your worries and consult experts to help you out!

Good luck!

The world of academics is always in the demand of good quality research based documents, and it is not always possible on the part of a researcher to provide the research based document, which is perfect from all the aspects, like methodological rigor, research objective, formatting, and language. First two of the aforementioned aspects can be controlled by the researcher, but the latter two may not be the expertise of the researcher, everyone is not an expert of language. That is the place, where the role of an editorial service provider comes into picture. By making use of the service provider, the researcher can get rid of the problems regarding proper usage of language in the research document, as well as formatting of the same. Outsourcing these parts of the research works can possibly enable the researcher to focus more on the subject area, and can enhance the quality of the research document by affording this tradeoff.

However, many times it may happen that the research document has some very confidential data, disclosing of which may cause several legal problems for the researcher, and as a consequence, the career graph of that person may come to a screeching halt. Therefore, hesitation regarding outsourcing that kind of work is a very natural phenomenon, as the security and confidentiality of that information is the primary concern of the researcher. As academic fraud is not a new concept in the world of academics and research, this kind of hesitation is quite understandable. Therefore, it is very much expected from the editorial service provider to ensure the security and confidentiality of the research documents, so that the researcher should not be afraid about that information being stolen or being used inappropriately. For more information about various aspects of ensuring the security of a submitted manuscript, kindly browse through the pages of www.thesisandcode.com.

Research on any field can be taken up in several ways, majorly theoretical and empirical. Considering the nature of applicability, empirical research works are always more preferred by the practitioners. However, devoid of any theoretical foundation, any empirical research work can never be carried out, and that is where the importance of theoretical research works comes into picture. This kind of research works are always appreciated among the large community of academicians, as based on the ground prepared by this theoretical foundation, empirical studies are conducted across several contexts. Consequently, theoretical studies are always hard and critical to be conducted, as in most of the cases researchers do not have the real world data, while conducting those studies. As a result, simulations turn out to be handy in these kinds of scenarios.

A theoretical study consists of an extensive set of parameters and conditional assumptions, which can be replicated into real world scenarios. It may be possible that all of those parameters are not required for all the scenarios, but keeping the boundary conditions in mind, an inclusive set of parameters and conditions are considered. For the parameters like willingness to pay, factor of differentiation, optimism and pessimism etc, it is nearly impossible for an individual to collect the data and conduct the study. In this kind of situation, conducting simulations based on several combinations of parameters and conditions can demonstrate the working of the theoretical model, the results of which can be approximated to the outcome if applied in the real world. It assists the researchers in testing and validating the scope and working of the model, devoid of which formulation of the theoretical model is not complete. MATLAB is one of the finest softwares for undertaking simulation based studies. For more information about conducting simulation for a theoretical model, kindly browse through the pages of www.thesisandcode.com.

One of the areas where simulation has really caught on is teaching. It helps engage the students actively. Many teachers worry that their students will not be paying attention if they just were to give boring lectures. That is why they choose to help simulations capture the interest of their students and also make them active participants in the learning process.

Simulations help teachers and students explore a multiplicity of options and decisions. They are able to evaluate the outcome of various decisions and judge for themselves as to which decision is the best and why. They can even set the parameters and conditions for each test differently and see what the results are. Many real world ideas can be explained through simulations without the cost of having to visit the actual scene.

It also allows the students to play games in the classroom. Playing games is one of the best ways of teaching and learning. Simulations allow students to learn and absorb information through innovative methods that help them retain the subject matter for a lot longer. Simulations also stimulate discussion. It brings about new questions in the minds of students and helps the teachers answer those questions.

The manufacturing industry has many uses for simulation. Managers want the product life cycles to be more efficient. There is constant work being done on how the life cycle can be made shorter. Customers want variations in the product. They want newer and more improved versions of the old products they had been using for quite some time. All this requires a lot of research.

If the engineers were to do research using real materials and in real life situations then not only would it be expensive, but it would also be dangerous. Simulations provide a safe and cost effective way of analyzing various permutations and combinations. The engineers can change the parameters, they can change the conditions, and they can alter what factors they want as inputs and which ones they do not. They can do all this and watch the result unfold before them in a manner that tells them everything they need to know.

They can use the simulations to find ways of speeding up the time the product goes from an idea on the shop floor to the stores of the marketplace. They can also make innovations which would give them an edge over their competitors.