Key Equations
Arrival and service are random, following Poisson and exponential distributions:
$$ f(r) = \mu e^{-\mu r} $$
Utilization ratio: $$ \rho = \frac{\lambda}{\mu} $$
| Symbol | Meaning |
|---|---|
| $$ L_q $$ | Average packets waiting: $$ L_q = \frac{\rho^2}{1-\rho} $$ |
| $$ W_q $$ | Average waiting time: $$ W_q = \frac{\rho}{\mu(1-\rho)} $$ |
| $$ W $$ | Total delay: $$ W = \frac{1}{\mu - \lambda} $$ |