Inter Arrival Times. Instead of giving a chance that someone, or something arrives in a particular time interval or not, we use the inter arrival times.

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Presentation transcript:

Inter Arrival Times

Instead of giving a chance that someone, or something arrives in a particular time interval or not, we use the inter arrival times or arrival intervals. Why?

The inter arrival time is just the time between successive arrivals. These times are simulated by random numbers.

Queuing Discipline This is the set of rules that determine whose turn it is to be served next. The most common discipline if FIFO. 1 Queue 1 server Customers Server A 1q1s

1 Queue 1 Server Arrival times %age Random No.s12,3,45,6,78,910 So when these numbers are generated it stands for the arrival time

CarRandomArr IntArr Time Leave space for 5 more columns

Service times Service % Random No.s 12,3,4 5,6 7 to 1415 to 18 19,20

CarRndArr IntArr TimeRndService TStartFinishWait

Continue for another 10 cars

1 Queue 2 Servers Here we have 1 queue with say 2 petrol pumps. Customers Servers A B Single Q 2 Servers

CarRndArr IntArr Time RndSer Time StartFinishStartFinishWait

CarRndArr IntArr Time RndSer Time StartFinishStartFinishWait Carry on for another 20 cars