Research Article

Joint Load Balancing and Offloading Optimization in Multiple Parked Vehicle-Assisted Edge Computing

Table 2

Simulation parameters.

ParametersDescriptionValue

Task data size (KB)[100, 1000]
Task required computing resource (megacycles)[500, 1500]
Wireless channel bandwidth (MHz)10
Uplink transmission power (W)1
Downlink transmission power (W)5
, Power gains1
White Gaussian noise power (dBm)-100
Max computing power of requesting vehicle (GHz)[0.5, 1]
Max computing power of edge node (GHz)8, [2, 3]
Uplink cost coefficient (J/KB)
Downlink cost coefficient (J/KB)
Energy consumption per CPU cycle of requesting vehicle (J/megacycles)
Energy consumption per CPU cycle of edge node (J/megacycles)
α, βThe weights of time delay and energy consumption in the total cost0.5, 0.5
Predefined threshold value.0.85