[1]School of Electrical and Computer Engineering;
RMIT University;
Melbourne;
Australia;
[2]Data61;
CSIRO;
Melbourne;
Australia;
[1]School of Electrical and Computer Engineering;
RMIT University;
Melbourne;
Australia;
[2]Data61;
CSIRO;
Melbourne;
Australia;
[1]School of Electrical and Computer Engineering;
RMIT University;
Melbourne;
Australia;
[1]School of Electrical and Computer Engineering;
RMIT University;
Melbourne;
Australia;
[1]School of Electrical and Computer Engineering;
RMIT University;
Melbourne;
Australia;
Aerial base station; UAV; Green communication; Sleep mode; Markov decision process; Energy efficiency; Energy delay tradeoff;