QualNet is a network simulation

Network simulation

In communication and computer network research, network simulation is a technique where a program models the behavior of a network either by calculating the interaction between the different network entities using mathematical formulas, or actually capturing and playing back observations from a...

 tool that simulates wireless and wired packet mode communication networks. QualNet Developer is a discrete event simulator used in the simulation of MANET,WiMAX

WiMAX

WiMAX is a communication technology for wirelessly delivering high-speed Internet service to large geographical areas. The 2005 WiMAX revision provided bit rates up to 40 Mbit/s with the 2011 update up to 1 Gbit/s for fixed stations...

 networks, satellite

Communications satellite

A communications satellite is an artificial satellite stationed in space for the purpose of telecommunications...

 networks, and sensor networks, among others. QualNet has models for common network protocols that are provided in source form and are organized around the OSI Stack.

History

QualNet is a commercial tool derived from GloMoSim

GloMoSim

Global Mobile Information System Simulator is a network protocol simulation software that simulates wireless and wired network systems. GloMoSim is designed using the parallel discrete event simulation capability provided by Parsec, a parallel programming language...

 that was first released in 2000 by Scalable Network Technologies (SNT). Today, the main differences between QualNet and GloMoSim are:

• QualNet is based on C++
  C++
  C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. It is regarded as an intermediate-level language, as it comprises a combination of both high-level and low-level language features. It was developed by Bjarne Stroustrup starting in 1979 at Bell...
  
  ; GloMoSim is based on PARSEC C
  Parsec (disambiguation)
  In astronomy, a parsec is a unit of distance.Parsec may also refer to:In video games:* Parsec , a side-scrolling video game for the TI-99/4A computer* PARSEC47, a scrolling shooter video game...
  
   (a C
  C (programming language)
  C is a general-purpose computer programming language developed between 1969 and 1973 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system....
  
   based parallel simulation language).
• QualNet is a commercial product; GloMoSim is distributed under an academic open source
  Open source
  The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...
  
   license.
• QualNet is maintained by SNT; GloMoSim is maintained by UCLA Parallel Computing Lab.

Parallel simulation

Like GloMoSim, QualNet can run on on parallel architectures and is a packet-level simulator. QualNet is considered a scalable simulator because it is an application that supports parallel computing

Parallel computing

Parallel computing is a form of computation in which many calculations are carried out simultaneously, operating on the principle that large problems can often be divided into smaller ones, which are then solved concurrently . There are several different forms of parallel computing: bit-level,...

.

Model libraries in QualNet

• ALE/ASAPS Advanced Propagation
• Cellular
• Military Radios
• Multimedia and Enterprise
• Network Security
• Satellite
• Sensor Networks
• Standard Interface
• TIREM Propagation
• UMTS
• Urban Propagation
• Wireless

External links

• Scalable Network Technologies web site