Due Date: 21/05/2020
Assignment Objectives:
• To enhance the knowledge of use cases as part of simulation building process
• To improve the learning of creation of the project in Omnet ++ simulation tool.

Uploading instructions:
• Your assignment must be in .doc format (Any other formats like scan images, PDF, bmp, etc will not be accepted).
• No assignment will be accepted through email.

Rules for Marking:

It should be clear that your assignment will not get any credit if:
• The assignment is submitted after due date.
• The submitted assignment does not open or file is corrupted.
• Your assignment is copied from internet, handouts or from any other student
(Strict disciplinary action will be taken in this case).

Assignment

Question No. 1 [Marks: 10]

You are required to install OMNET++ in your system and write down all installation steps.
When installation is completed, do the following tasks:

• Open OMNET++ IDE.
• Create a new empty project.
• Give your VUID as project name.
• After creation of project takes a snapshot of the newly created project, in which your VUID is shown as project name.

Sample of snapshot is given as under.

Note: Installation guide is available in download section on VULMS.

Question No. 2 [Marks: 10]

Following is a XYZ University Registration System’s use case. You are required to identify and define the Simulation Building Process activities (Entities, states, Events) of given use case.

Deadline: Your assignment must be uploaded/submitted on or before 21st May 2020.

Question No. 2 [Marks: 10]
Simulation is one of the most significant technologies in the world that provides us the facility to get a virtual environment that behaves like a real environment without having expensive hardware and software. For this purpose we have various types of networking tools or simulators.
You are required to make comparison between the Omnet++ and NS3 simulators. Provide at least five points for each of the mentioned simulators.

Omnet++
Modules:
Simple Module
Compound Module
User Interface:
TKENV (GUI based)
CMDENV
Execution:
Parallel support
Language: NED

NS-2
Modules:
Modules are one inseparable unit. Also supports hierarchical models.
Interface:
GUI-based execution environment.
Language:
It is a dual-language simulator.
C++ and python.
Although it’s difficult but memory efficient.

b) Omnet++ IDE has many built in examples of simulations.

a) You are required to install Omnet++ Simulator by providing detail of all the necessary steps.

Solution
Installing OMNET++:

Download the OMNeT++ source code from
http://omnetpp.org

Make sure you select the Windows-specific archive, named omnetpp-4.6-src-windows.zip
The package is nearly self-contained, in addition to OMNeT++ files.

Copy the OMNeT++ archive to the directory where you want to install it. Choose a directory whose full path does not contain any space; for example, do not put OMNeT++ under Program Files.

Extract the zip file. To do so, right-click the zip file in Windows Explorer, and select Extract All from the menu. You can also use external programs like Winzip or 7zip. Rename the resulting directory to omnetpp-4.6.

When you look into the new omnetpp-4.6 directory, should see directories named doc, images, include, tools, etc., and files named mingwenv.cmd, configure, Makefile, and others.
Configuring and Building OMNeT++:

Start mingwenv.cmd in the omnetpp-4.6 directory by double-clicking it in Windows Explorer. It will bring up a console with the MSYS bash shell, where the path is already set to include the omnetpp-4.6/bin directory.

Then enter the following commands:
$ ./configure
$ make
The build process will create both debug and release binaries.

Verifying the installation:

You should now test all samples and check they run correctly. As an example, the dyna example is started by entering the following commands:
$ cd samples/dyna
$ ./dyna
By default, the samples will run using the graphical Tkenv environment. You should see GUI windows and dialogs.

Starting the IDE:

OMNeT++ comes with an Eclipse-based Simulation IDE. You should be able to start the IDE by typing:
$ omnetpp
To create a new empty project, open File menu, select New then select OMNET++ Project… option.
New OMNET++ Project window is opened
In Project name field give your VU ID for example
Project name:
Click on Next> button
Select Empty project and click on Finish button.
An empty project is now created. Following is the screenshot