DC splitting for transmitter power limit low pass channel information and power transfer

In this paper, we study a transmitter power limit low pass channel information and power transfer system for ammunition data link. A DC splitting architecture where a DC signal is used for power transfer and several OFDM subcarriers are used for information transfer is designed for the system. The DC and OFDM power allocation problem for maximizing the information transfer rate is proposed and constraints of power splitter leakage, DC/DC narrowband noises, transmitter available power, maximum receiver security and minimum receiver sustainable power are taken into account. Lagrange multiplier algorithm is used for solving the constrained convex optimization problem. Simulation result shows that the optimal power allocation can be gotten under the proposed design. The sub-bound of the transmitter available power and the up-bound of active bandwidth of the proposed architecture are calculated by using the algorithm.