. 2021 Feb 28;21(5):1666. doi: 10.3390/s21051666

Table 1.

List of notations.

Symbol	Description
$j_{i}$	the task
$a_{i}$	the arriving time of $j_{i}$
$z_{i}$	the type of $j_{i}$
$l_{i}$	the size of $j_{i}$
$d_{i}$	the expected latency of $j_{i}$
$v_{j}$	the VM
M	the number of VMs
O	the maximum tasks in the waiting slot
$V$	the state of the VM, with the shape of $M \times 2$
$Q$	the state of the waiting tasks, with the shape of $4 \times O$
$\| b \|$	the number of tasks in the backlog queue
$t w_{i, j}$	the waiting time of $j_{i}$ scheduled to $v_{j}$
$w_{i, j}$	the task satisfaction degree of $j_{i}$ scheduled to $v_{j}$
$t_{i, j}$	the response time of $j_{i}$ scheduled to $v_{j}$