Optimal transmission strategy in fading broadcasting channels with energy harvesting switching transmitters

In this paper, the data transmission problem is considered with energy harvesting switching transmitters in the fading broadcasting channels. Firstly, the data transmission problem is formulated as the problem of throughput maximization in a given interval. The directional water-filling algorithm is used to obtain transmission rate under a new variation by combining the fading coefficients and noise power. Then, the data transmission problem is studied in an epoch. The optimal transmission strategy with the transmitters-switching method is also investigated in this paper. This strategy can improve the flexibility and robustness of the communication system and reduce the communication interrupt caused by transmitter malfunction or energy failure. Finally, the transmission strategy is verified by computer simulations.