Queueing Theory Project

In this book it is considered on completion of a service if the queue length ‘n’ is zero then the server leaves for Multiple Vacation of random length irrespective of queue length. When the server return from a vacation and if queue length ‘n’ is still zero he leaves for another vacation and so on until the server finds ‘n’ customer in the queue.The server breakdown suddenly (catastrophe occur) the queue length is probably increasing. For this Queueing System we developed the Mathematical equations Various Characteristic equation and some particular cause also derived.