|
| Symbol | Definition |
|
| The number of UEs |
| The number of tasks generated for each UE |
| The number of F-APs |
| The data size of UE ’s -th task |
| The size of the offloading data for UE ’s -th task |
| The size of the required computation for UE ’s -th task |
| The wireless channel gain between the -th F-AP and -th UE at time |
| The linear distance from the -th F-AP to -th UE at time |
| The band utilization between the -th F-AP and -th UE at time |
| The proportion of channel resources allocated to the -th UE at time |
| The antenna gain |
| The carrier frequency |
| The path loss index |
| The transmit power of device |
| Power of the white Gaussian noise |
| The energy consumption to upload 1 of data |
| The amount of energy consumed by the CPU per cycle |
| The time cost of uploading the relevant information |
| The transmission time of tasks during offloading |
| The backhaul delay of the result |
| The total transmission delay for UE ’s -th task |
| The transmission delay of UE ’s -th uploading task |
| The time consumption of UE ’s -th task in local side |
| The time consumption of UE ’s -th task in fog side |
| The time consumption of UE ’s -th task in cloud side |
| The energy consumption of UE ’s -th uploading task |
| The energy consumption of UE ’s -th task in local side |
| The energy consumption of UE ’s -th task in fog side |
| The energy consumption of UE ’s -th task in cloud side |
| Offloading decision of UE ’s -th task in local side |
|
| Offloading decision of UE ’s -th task in fog side |
|
| Offloading decision of UE ’s -th task in cloud side |
|
| The computational capacity of UE |
| The computation resources managed by the edge router |
| The total upload channel resources |
| The computation resources of the -th F-AP |
| The proportion of fog computation resources allocated to the -th UE at time |
| The propagation delay to the cloud server |
| The weighted sum cost function |
| The time consumption of computing all tasks |
| The energy consumption of computing all tasks |
| The focus ratio of delay to energy |
|
