|
| Symbol | Description |
|
| | Input Parameters |
|
| | number of BSs, indexed by |
| maximum number of VMs hosted by each MEC server |
| | time slot duration |
| | BS traffic load profile in time slot , is the BS index |
| | workload handled by the MEC server at BS in time slot |
| | standard (non MEC) traffic at time |
| | BS load independent energy consumption or operation energy |
| | maximum processing rate for VM |
| | a finite set of available processing rates for VM |
| | energy overheads incurred when turning on/off VMs |
| | static energy consumed by VM in the idle state |
| | maximum energy consumed by VM at maximum processing rate |
| | workload fraction to be computed by the -th VM |
| | maximum computation load per-VM |
| | maximum per-slot and per-VM allowed processing time |
| | energy consumption of network interfaces in idle mode |
| | energy cost of exchanging one unit of data between the server and the BS |
| | maximum energy buffer capacity |
| | upper and lower energy buffer thresholds |
|
| | Variables |
|
| | total energy consumption for the communication site |
| | BS energy cost at |
| | server consumption due to computation activities |
| | data transmission energy consumption between the BS and the MEC server |
| | BS switching status indicator at |
| | number of VMs to be active in time slot |
| | total wireless transmission power |
| | instantaneous processing rate |
| | energy consumption of VM operation |
| | load dependent factor |
| | the expected processing time |
| | the total amount of load that is served by the BS site |
| | energy buffer level in slot |
| | harvested energy profile in slot |
| | purchased grid energy in slot |
|
