Simultaneous Wireless Information and Power Transfer in Cellular Networks With Directional Antennas

The fundamental trade-off in simultaneous wireless information and power transfer (SWIPT) is investigated from the point of view of power-splitting the signals of randomly deployed cellular base stations employing directional antennas. Leveraging tools from stochastic geometry and using realistic antenna gain profiles, we derive novel closed form expressions enabling an in-depth understanding of this trade-off and how a system-level optimization can be achieved.