Seminar On

Network Simulation Software

Presented By :-Kartik N. Kalpande

IntroductionWhat is Network Simulation?

“Simulation is the process of designing a model of a real system and conducting experiments with this model for the purpose of either understanding the behavior of the system and/or evaluating various strategies for the

operation of the system.”

Allow Us

• Model complex systems in a detailed way• Describe the behavior of systems• Construct theories or hypotheses that

account for the observed behavior• Use the model to predict future behavior,

that is, the effects that will be produced by changes in the system

• Analyze proposed systems

List of Simulator

Open Source Simulator:

• NS2• NS3• OMNET++• J-Sim etc..

List of Simulator cont..

Commercial :

• OPNET• QUALNET• 20-Sim• AMEsim etc..

Comparison of different simulatorFeatures Qualnet Omnet++ NS-2 OPnet J-SimLanguageSupported

Parsec/ C++ C++ C++/OTCL C++/Java Java

License Commercial Open source Open source Commercial Open source

GUI support Excellent Good Poor Excellent Good

Time taken to learn Very easy Moderate Long Long Moderate

Platform  

Linux  

Linux,mac-os,unix Unix,mac-OSMicrosoftwindowCygwin

C,C++,Opnetmodelersoftware 

Mat lab

Availability ofanalysis tool

         

Networkvisualization tool

         

Possibility to design and modifyscenarios

         

Create trace files   

       

Application Areas

• Manufacturing/ Materials Handling• Public and Health Systems• Military• Natural Resource Management• Transportation• Computer Systems Performance• Communications

Advantages of Simulation

• Can be used to study existing systems without disrupting the ongoing operations.

• Proposed systems can be “tested” before committing resources.

• Allows us to control time.

• Allows us to gain insight into which variables are most important to system performance.

Advantages cont..

• Cause-effect relations• Exploration of possibilities.• Diagnosing of problems.• Identification of constraints.• Visualization of plans.

Disadvantages of Simulation

• Training required.• Interpretation of results required.• Time consuming/expensive.• Inappropriately used.• Simulation results are sometimes hard to interpret.

Refrence

• E.Weingartner,H.V.Lehn and k.wehrle “A performance comparison of recent network simulator” IEEE International Conference on Communications (ICC 2009), RWTH Aachen University Aachen, Germany pp. 271– 350

• J. Lessmann, P. Janalik, Lessmann, P. janalik, Lazar Lachev D. Orfanus, “Comparative study of wireless network simulator”, IEEE PRO,2008.

• M. M. Koksal “A survey of network simulator supporting Wireless networks.” Middle East technical university Ankara. Turkey, pp.1-11, 2008

• The network simulator ns-2. http://www.isi.edu/nsnam/ns/

Conclusion

With the help of network simulation software we can see the operations perform in the network easily.

•THANK YOU….!!!!