Dynamic Contract Incentives Mechanism for Traffic Offloading in Multi-UAV Networks

Table 1

Key notations.

Symbol	Physical meaning
	Number of UAVs
	UAV’s channel ( to ) gain
,	UAV’s transmit power and accept power
,	UAV’s received power in stage 1 and stage 2
, ,	UAV’s per cost, transmission cost, total cost
	UAV’s private information
,	UAV’s private information in stage 1 and stage 2
,	Probability density function of
,	Probability distribution function of
	UAV’s energy consumed by movement
	The reward of UAV
,	UAV’s reward in stage 1 and stage 2
, ,	UAV’s total, stage 1 and stage 2 utility
	Noise power
	Profit per transmission capacity
	BS’s total profit
, ,	BS’s total, stage 1 and stage 2 expected utility