Markov Approximation for Task Offloading and Computation Scaling in Mobile Edge Computing

Table 1

Simulation parameters.

Parameter	Definition	Default value
	Total number of computation tasks	100
	Total number of MEC servers	4
	Required number of CPU cycles for processing task m	cycles
	Size of the input data of task m	0.5 MB
	Size of the output data of task m
θ	Power parameter in CPU energy consumption model	3
	Power parameter in CPU energy consumption model
	CPU frequency range of the MD	cycles/sec
	Total number of CPU DVFS levels	7
	Service rates provided by MEC servers	cycles/sec
	Uplink data rate between the MD and MEC server n	Mbps
	Downlink data rate between the MD and MEC server n	Mbps
	Transmitting power of MD	1.26 Watt
	Receiving power of MD	1.18 Watt
	Scalar weight of tasks’ execution time	0.5
	Scalar weight of the MD’s energy consumption
β	Positive constant that controls approximation accuracy	50
γ	Mean value for the countdown timer	200