what is the main limitations of Wireless network simulators when conducting a real life scenario?
According to the different types of simulators for wireless network , I will take the three types that are popular : NS-2, OMNET ++ and QualNET.
The limitations of NS-2 are:
- People who want to use this simulator needs to be familiar with writing scripting language and modeling technique; the Tool Command Language is somewhat difficult to understand and write.
- it is sometimes more complex and time consuming than other simulators to model a desired job.
- NS-2 provides a poor graphical support, no Graphical User Interface (GUI); the users have to directly face to text commands of the electronic devices.
- Due to the continuing changing the code base, the result may not be consistent, or contains bugs.
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The two limitations of OMNET++ are:
-Number of protocol is not large enough.
-Compatibility problem (not portable) .
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While the limitations of QualNET are:
-Difficult installation on Linux.
-Slow Java-based UI.
- Very expensive.
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Thank you Reem
What I want to know is there any real life situations that simulation softwares didn't address them, which may result of unclear study scenario.
OK ,,
I think that in real world scenarios , the communication performance can be affected by several factors like terrain , foliage , weather , obstacles , nodal mobility and the presence electromagnetic radiation that results a lot of problems like multi path fading , shadowing and interference which the simulations don't account for all of these effects.
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