What is NS3 Simulator? Network simulator 3 is shortly called NS3 which is also known as discrete-event network simulator made for the Internet. NS3 helps in creating a variety of virtual nodes.

Overview of NS3 simulator

NS3 simulator with the help of various Helper classes which allows installing Application, Internet stacks, and Devices to our nodes respectively. It is written with C++ language and wrapped up by Python.

“This article speaks about the Network Simulator 3, which helps in installing software and concepts using this simulator”.

Our experts have done in-depth research on this topic and analyzed a lot about the role of network simulator 3 in current technology. Our Experts have collected massive resources and it is reliable. Let’s see detailed explanations given by our professional experts in the upcoming ages.

Connections in NS3

Connections between nodes are established by Carrier Sense Multiple Access (CSMA) techniques utilizing the peer-to-peer link. For this purpose, the connections between nodes can be created by the NS3 simulator. Local Area Network can be connected between two computers. Varieties of computers and routers are gets connected by Wireless Connection like Wi-Fi connection. To enable network connectivity, we need to install Network Interface Controller (NIC) to every node after building connections.

Different parameters are added in the channels when network cards are enabled in the devices. The parameters are data rate, packet size, etc. Now the Application is used to generate Traffic and using these applications, the packets are sent.

Features of NS3 Simulator

Our Experts after multi-revisions, have given some unique features of NS3 Projects, which is different from other tools.

• NS3 is used on macOS systems or Linux. This can also be used in Berkeley Software Distribution and Windows Frameworks. Also, it can help in building Linux code such as Cygwin or Windows Subsystem. Linux virtual machine is used by Windows users.
• It is designed as a group of libraries that can be joined together and can also join with software libraries externally. NS3 simulator is a good model for providing platforms like a single, integrated graphical user interface environment, by which all tasks can be carried out.
• NS3 is user-friendly and it can be used with Data Analysis, Visualization tools, and many External animators. Users should work with C++ or Python Software development tools and work at the command line.

How to Running a script in NS3 Simulator?

Scripts run under the control of Web Application Firewall (Waf). This gives permission to build system to check that tScripts run under the control of Web Application Firewall (Waf). This permits to build system to check that the library paths shared are set correctly and whether those library paths are available at run time. In Web Application Firewall, to run a program, the user can use the –run option. For the understanding, our experts have given examples with practical explanations with a program given below

            e.g.: $. /waf    –run hello-simulator

Then the process of Web Application Firewall begins by checking whether the program is built correctly and allows Then the process of Web Application Firewall begins by checking whether the program is built correctly and allows executing a build if required. Finally, the program is executed with the following output shown below.

            Output: Hello Simulator

In the following, set up nodes and the mobility models for simulation in NS3 are discussed with the functions and class names.

Setup nodes and Mobility models

Mobility models and nodes are arranged as well. To use them with the model of buildings, we need an additional call to BuildingHelper::Install(), which leads the mobility model to give the correct position for information to the buildings. Also, any mobility model can be used. The Mobility model’s behavior should be consistent with the presence of the building

For Example: In presence of a Building, using simple random mobility over the whole simulation area would leave in node moving in and out of the building, without considering the position of the wall. To place the node incorrect and special positions concerning buildings, there are position allocator classes. NS3 simulators are described one by one below.

• Fixed Room Position Allocator

Inside a chosen room and building, a random position is generated uniformly and distributed in the particular volume respectively.

• Same Room Position Allocator

A node container is given orderly; new position is allocated randomly for each node in the same room of that node

• Random Building Position Allocator

By randomly choosing a building from the list of buildings and position is allocated randomly. Finally a position inside the building is randomly chosen.

• Random Room Position Allocator

The position is allocated by choosing randomly a room from the list of rooms in all buildings and choosing a position inside the room.

NS-3 LTE model

            Network simulation 3 Long Term Evolution (LTE) model is a library for the software that permits the simulation of Long Term Evolution networks, additionally including the Evolved Packet Core (EPC). Our experts with in-depth research have given the process of performing simulations. LTE Projects that are given in the following steps below:

1. Defining a scenario
2. Writing a Simulation program using NS3::LteHelper.
3. Specifying the Configuration Parameters using NS3::ConfigStore.
4. Configuring the desires Output.
5. Running and execution of simulation

There are several schemes are added for simulation and example frequency reuse algorithms are used for NS3 Simulator to a wide range of networks as follows.

Frequency Reuse Algorithms in NS3 Simulator

The scheme called Frequency Reuse is used for the reuse and allocation of channels throughout a coverage region is done. Within a small geographic area known as a Cell, each cellular base is allocated a group of frequency sub-bands and radio channels. In NS3, Frequency Reuse Algorithms are incorporated in eNb within Long Term Evolution. There are two ways in Configuration. A detailed view is given below.

• Manual Configuration

This Configuration requires more parameters but the user is free to configure Force-Directed Algorithm. By settin0g up This Configuration requires more parameters but the user is free to configure the Force-Directed Algorithm. By settin0g up of Force-Directed Algorithm and attributes, the Frequency reuse algorithm can be configured “manually” within the simulation program. There are seven Force-Directed algorithms given below:

• ns3::LteFrHardAlgorithm
• ns3::LteFrstrictAlgorithm
• ns3::LteFfrSoftAlgorithm
• ns3::LteFrSoftAlgorithm
• ns3::LteFfrDistributedAlgorithm
• ns3::LteFfrEnhancedAlgorithm
• ns3::LteFrNoOpAlgorithm

• Automatic Configuration

This second approach is very convenient because it is the same for each Force-Directed Algorithm, so the user can switch the FR algorithm instantly by changing the type alone. Automatic Configuration can be configured by setting FrCellTypeId and bandwidth.

While starting the Force-Directed algorithm, FrCellTypeId is taken from the configuration table. Only sub-bands are configured. Transmission power and thresholds are set to default values.

            Research topics must be unique while working on any academic project for which we are specialized in choosing the best research and also suggested very novel research ideas that are executed and simulated using NS3. Some of the crucial topics are listed below for your reference.

Research Topics in NS3 Simulator

• A cost effective architecture for NGN based radio access with green radio networks
• Routing using End-to-End Delay over the mobile sink based WSN
• Design of Novel Routing Algorithm for Energy Efficient Optical Transport Networks
• Evaluation of AODV performance for routing in MANET
• AI based Intelligent Scheme for Routing in Reconfigurable WSN

NS3 simulation is developing technology that launches with latest releases (consists of new sets of features). It is hNS3 simulation is developing technology that launches with the latest releases (consists of new sets of features). It helps install applications and devices. Our experts who are professionals are working on this topic. Experts try to bring the importance of the NS3 simulator to the light of the world. It is reliable and scam-free. Experts have more experience in guiding research Network Simulator 3. So you can contact us at any time.