Queuing Models and Simulations

Hi guys,
    Today we are going to discuss about a new topics : "Queuing Models in NS2". I hope you all know about different queuing models and i am least interested on discussing about that. We are going straight to our main topic.

Why Queuing Models and Simulations??

• Simulations are normally used in the analysis part of queuing models 
• Queuing Model is nothing but a simple representation  of a network flow with traffic. 
  
• Queuing models provide the analyst with a powerful tool for designing and evaluating the performance of queuing systems.
• Normally it measures; Utilization of Server, Length of Waiting Bucket and Delay Duration.
• In simple systems, We can calculate it mathematically but in the case of large and complex networks, we need simulation.

Elements In a Queuing System

• Customer : It is nothing but anything which requires services from server.
• Server : Refers to any resource which provides service to customer.
• Calling Population : A group of customer. It may be finite or infinite.

For Simulation and Comparison of Queue Scheduling Algorithms; Click here