Graph of Optimization of Cost
Representation of Queueing Model
Kendalls Lee Notation:
The general form of notation is
(a/b/c ) : (d/e/f )
Here,
- a = Probability distribution for arrival pattern.
- b = Probability distribution for service pattern.
- c = Number of servers.
- d = Service rule or service order.e =
- number of customers allowed in the system
- f = Size of calling population.
Queueing Model 1 (M/M/1) : (FIFO/∞/∞)
- M=Arrival pattern with Poisson distribution.
- M=Service rate is exponentially distributed.
- 1 = Number of server.
- FIFO = Service rule,
- ∞ = customer number allowed
- ∞ = Size of calling population
Assumption (λ < µ): : When mean arrival rate (λ) is greater than mean service rate, there will be never ending queue and it leads to queue explosion.
Remember:
In queuing model the assumption is that, if random variable is independently and identically distributed random variable then only we can assume it as Poisson distribution.
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