This is a preview. Log in through your library . Abstract Many real-world situations involve queueing systems in which customers wait for service for a limited time only and leave the system if ...

Real-life queuing problems tend to be complex and ill-defined, and exact mathematical approaches are therefore illusory. This has to be taken into account when one wants to determine the right number ...

Internet users around the world depend on various computer networks services such as video-conferencing, FTP and VoIP as a next generation Internet applications. This paper presents performance ...