An Efficient Computing Offloading Scheme Based on Privacy-Preserving in Mobile Edge Computing Networks

Table 1

Key symbol definition.

Notation	Description
	Set of users
	Set of MEC servers
	Set of virtual machines in server
	Computation task of user
	Workload for computation tasks
	Data size for computation tasks
	Computing power of virtual machine in server
	Local computing capability of user
	Transmission power of user
	Local computing power of user
	Channel gain from user n to edge server
	Uplink bandwidth
	Delay of task execution locally
	Delay for task uploaded to edge server
	Delay of task execution on edge server
	Encryption time of task
	Decryption time of task at the server
	Task offloading strategy,
	Rate of from task uploaded to edge server
	Resource utilization rate of serve
	Load balance mean variance rate
	Number of virtual machines in server