Optimal event-triggered strategy for energy harvesting mobile transmission

This work focuses on an energy harvesting communication system where a static sensor harvests energy from the environment and transmits information to a moving agent. Assuming that the battery is infinite and the sensor always has information to transmit, we first maximize the channel service theoretically, and then implement the event-triggered scheduling to control the time for starting transmission. We prove that energy depletion time is only relevant to the initial energy in the battery. There is no relation between the harvesting power and the energy depletion time. We provide the transmission triggered condition by deriving the initial energy threshold. Moreover, we extend the transmission model in single time-slot to an M/G/s(0) queuing system in multiple time slots and discuss the blocking probability caused by the event-triggered strategy. Our numerical results show the channel service of the scheme along with constant PA under various different configurations.