Broadcasting With a Battery Limited Energy Harvesting Rechargeable Transmitter
The authors consider the minimization of the transmission completion time with a battery limited energy harvesting transmitter in a two-user AWGN broadcast channel. The transmitter has fixed number of packets for each receiver and energy is modeled to arrive (be harvested) at the transmitter at random instants. The battery at the transmitter has a finite storage capacity, hence energy may overflow without being utilized for data transmission. They derive the optimal offline transmission policy that minimizes the time by which all of the data packets are delivered to their respective destinations. They analyze the structural properties of the optimal transmission policy using a dual problem.