Qualnet Soft
Comparison of Qualnet and NS2 network simulators
مقایسه شبیه سازهای شبکه Qualnet و NS2
| Qualnet |
NS2 |
|---|
| 1. |
Commercial simulator, based upon GloMoSim simulator. |
1. |
Freely available for research and educational purposes. |
| 2. |
Uses the parallel simulation environment
for complex systems (PARSEC) for basic operations, hence can run on
distributed machines. |
2. |
Runs on a single machine, no parallel execution support in NS2. |
| 3. |
Mainly developed for wireless scenario simulations, but wired networks also supported. |
3. |
Mainly developed for wired networks, but its CMU extension facilitates the wireless network simulation. |
| 4. |
Qualnet includes a graphical user
interface for creating the model and its specification. So, it is very
easy to specify small to medium networks by using the GUI. |
4. |
To create and simulate a model, we have to
specify all connections in a special model file manually. Uses OTcl for
model file specifications. |
| 5. |
Since it uses primarily Java for the GUI,
it is available for Linux as well as for Windows. The simulator itself
is the specified target system optimized C program. |
5. |
It is designed for Unix systems but runs under Windows CygWin as well. |
| 6. |
Faster simulation speeds and greater
scalability are achievable through smart architecture and optimized
memory management of Qualnet. |
6. |
Not as fast and scalable. |
| 7. |
Not used much in research as it is not freely available, hence lesser support (code samples etc) available on Web. |
7. |
Widely used for research, hence large number of resources available on Web. |
| 8. |
Simulation of wireless sensor networks is supported in Qualnet 4.5 (using ZigBee library). |
8. |
No such support available as of now. |
| 9. |
Simulation of GSM mobile networks also supported. |
9. |
GSM not supported in NS2. |
| 10. |
Includes a variety of advanced libraries
such as mesh networking, battery models, network security toolkit, and a
large number of protocols at different layers. |
10. |
These advanced libraries for wireless support are not available in NS2. |
| 11. |
Includes a 3D visualizer for better visualization of a scenario. |
11. |
2D animator (NAM) is used with NS2. |
| 12. |
Much easier for beginners who want to
evaluate and test different existing routing protocols, as it can be
done with GUI, without writing even a single line of code. |
12. |
Requires knowledge of Tcl scripting before you can begin with NS2. |
| 13. |
For implementing new protocols, Qualnet uses C/C++ and follows a procedural paradigm. |
13. |
NS2 also uses C++ for new protocol/model
development, but it uses object-oriented paradigm (usage of different
classes) for programming. |
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جمعه 8 آذر 1398 ساعت 23:43
