Subcarrier Allocation and Power Control Scheme for SWIPT-enabled Multi-carrier D2D Communications

Underlay device-to-device communication enables two peer nodes to communicate directly with each other and can improve the system’s spectral efficiency. Simultaneous wireless information and power transfer (SWIPT) is a technology that can transport information and energy simultaneously. Employing SWIPT can significantly extend the network lifetime of energy-constraint wireless communication systems. In SWIPT-enabled D2D communication networks, D2D users can utilize a part of its subcarriers to transmit information and the others to collect the frequency energy from the base station (BS), which can replenish their energy consumption. To maximize system throughput, we propose a joint subcarrier allocation and power control scheme for SWIPT-enabled multi-carrier D2D communication networks. Simulation results show that the proposed scheme can improve the system throughput while supplementing energy consumption.