Introduction about OMNeT++ :  In current times, we use more than more technology for our daily needs. This kind of technology makes our life more comfortable and happy. Do your thing without technology our life is cannot be move. So, this is needed to know what are technologies are used in our daily routine. “In this article, we will share our knowledge with you about OMNeT++ projects and its library functions, Editors, Network designing of these projects, debugging view, Analytics and performance evaluations also.”

  OMNeT++ is mainly used to build network simulators and is based on the Component C++ framework and it is a modular and extensible network simulator. Queuing network wired and wireless networks and on-chip network there are some types of network and some functionalities like Internet protocol, Sensor network, Performance modeling, and sensor network are supported for domain specification. Its extending with wizards, editors, and other functionality also here we use two configuration nodes (ini files, NED files).

OMNeT++ Projects

           We also know OMNeT++ is the discrete event simulator is written by the structure of C++. The model of OMNeT++ combines the two networks in one project the networks are distributed network and communication network. 

This platform contains power tools for the simulation process and it is also known as open-source software. It can support both Linux, UNIX, and Windows operating systems. Then we will see about the simulation library and user library is used for OMNeT++ projects.

Simulation Library in OMNeT++ project 

• Integrate many messages with objects.
• It has a set of class libraries with container classes and queues.
• For various Independent streams, it provides random numbers.
• It controls the traffic in OMNeT++.
• Give support for constructing graph data structure from the extraction of topology.
• It has more statistical classes because of gathers the standard deviation samples and means samples.
• Perform priority queue operation.
• Every message is considered as an object or class.
• Objects must have the arbitrary data structure of other objects.

User Libraries

• It has some embedding applications, it combines multiple topologies to create a model.
• Simulation library and used library both have generic interfaces.
• For running the simulations its must be an interface with some useful libraries.
• It holds physically separated libraries is denoted as a combination of Cmdenv, sim, Tkenv, and Envir with OMNeT++ library.

We hope now you are clear on this topic what are the simulation libraries and user libraries in OMNeT++ projects. Then the next topic is editors used in OMNeT++. Here also it has two kinds of editors that are ini file editor and NED editor. Let us see what are the operations mainly used in that editor and more about it.

Ini File Editor

• In this editor, we can perform undo/redo operations at unlimited times.
• It can communicate automatically to the OMNeT++ 3.x ini files.
• This ini file editor is mainly used for the execution of user configure simulations.
• Perform Source editing and form-based editing.
• In this editor, it is possible to edit the structure of ini files by using dialogs and drop/drag operations.
• This editor considers all organized topics, several forms, and configuration options.
• In the section of Tooltips, we can also able to view the default value and description.
• This is useful for easy reading and persistence.

NED Editor

• This editor is useful for editing the NED files in the form of text and is also able to edit the graphical structure.
• This editor contains two modes that id user mode and graphical mode.
• Users can move between these two modes using tabs that are always placed at the bottom of the editor.
• This editor gives more number of features. There are,
  • Zooming
  • Unlimited undo/redo
  • Alignment of object
  • Object cloning
  • Constrained resize and move.
• One user can create channels, modules, and other types of components in the graphical model.
• Palette is used to create sub modules for some available modules.
• The modification of Nonvisual and visual properties is possible by changing some terms in properties view and dialogs from the context menu.

So, the above topics clearly say some basic things about the ini file editor and NED editor from this information about the editor is clearly insisting construction of the OMNeT++ is easy to edit because of this tool. Then we will discuss Debugging view of OMNeT++ projects.

Debugging View of OMNeT++ 

• Eclipse’s standard view is also known as debugging view but this view is useful for many operations not only for debugging.
• The shortcut approach of Console view is double-clicking on output process items.
• To view which process is currently executed is possible by using Progress view.
• Debug view is also known as already Exited codes and previously terminated process.

These are some basic things about Debug view in OMNeT++ projects. This topic increases our interest in these projects. Right now, we have more number of developing and developed projects. Our next topic is Network design in OMNeT++ and this topic also gives some idea about VANET and ad-hoc networks.

Network designs in OMNeT++

• We provide a lot of applications based on WBAN and it also has a more number of sensors and actuators.
• Designed for a simulated network like WBAN (Wireless Body Area Network) and VANET.
• In the body area network each device designed three kinds of nodes and OMNeT++ is analyzing the nodes. Their nodes are,
  • Actuator nodes
  • Wireless personal device.
  • Wireless sensor network.
• OMNeT++ simulates with Vehicle to infrastructure communication, Vehicle to Vehicle communication, and intelligent transport systems in the VANET (Vehicular Ad-hic Networks).
• Simulate the basic functions of the body with WBAN.
• OMNeT++ VANET simulation is utilizing DSRC (Dedicated Short Range Communication).
• In OMNeT++ Simulation process has more simulation tools that are directly from the science journals.

The above section it’s about network design in OMNeT++ projects. From this section, we gather more knowledge about VANET, WBAN, and DSRC. Then we will go to the next topic which is the sequence chart.

Sequence Chart in OMNeT++ projects

• During the process of simulation, it is possible to log multiple events with the use of OMNeT++ Simulation Kernel. The events are,
  • User log messages
  • Scheduling
  • Deletion and connection creation and modules
  • Cancelling self-messages
  • Sending messages
• An event log file has the result of well-defined information of simulation and various purposes.
  • The third-party file formats have line-based text.
  • A sequence chart is used to view the visualizing message.

Then, we will consider the result analysis module with the use of scave tool. The main purpose of this tool is to support the user and simulation results foe scalar files and also vector files.

Scave Tool

• The repeatable and systematic process is useful for the Ad-hoc browsing data and recipes is used for storing the charts and all process.
• Using of scave tool is easy to work a file with the radio of one or two files at a time of a single simulation and it is always possible to multiple hundred files are work in a simulation process because of this tool.

This scave editor is always referred to as a multi-page editor and scave are created by the combination of Plove tools and OMNeT++ scalar tools. These are some introductions about scave tool. Finally, we will go through the section Implementation of OMNeT++ and it has some subtopics also that is broadcast strategies, Multi-Hop networks, and performance comparison. Let us see each topic individually.

Implementation of OMNeT++ projects

Performance evaluation and broadcast strategies of IEEE 802.15.4 in WBAN: Here, we consider the WBAN it is said to be a network that is specially made for wireless networks among wearable and implant technology. 

Mobility and radio propagation is considered as a context of WBAN which is getting to the movements and characteristic of the body.

Multi-hop network for Broadcasting: The algorithm of the multi-hop network is separated into two categories. There are,

• Knowledge-based algorithm: gain information about several transmissions.
• Dissemination algorithms: It does not require unique detail of the network.

Performance matrix: Here, there are some criteria is considered with different strategies. The criteria are,

• Traffic load: The main source of energy consumption is assigning the communication with all nodes in the network and calculating the number of transmissions at a time.
• Network Coverage: This is calculated based on the number of nodes and percentage of results.
• Latency: End-to-end delay is average and covering of the last node is possible.

So far, we will discuss the entire details of OMNeT++ projects. We hope this article is very useful for you. We have more number of projects based on this kind of topic and other topics also. For further more details kindly contact us.