DE	Differential Evolution
DIDE	Delete-and-Insert Differential Evolution
GA	Genetic Algorithm
IoT	Internet of Things
MGA	Modified Genetic Algorithm
PSO	Partical Swarm Optimization
QoE	Quality of Experience
QoS	Quality of Service
SA	Simulated Annealing
SJSA	Swap-and-Judge Simulated Annealing
SOS	Symbiotic Organisms Search
TSP	Traveling Salesman Problem
UAV	Unmanned Aerial Vehicle
VRP	Vehicle Routing Problem