Simultaneous Wireless Information and Power Transfer Based on Time–Frequency Block Allocation in OFDM Cooperative Communication System

In this paper, simultaneous wireless information and power transfer based on time–frequency block allocation (TFBA-SWIPT) is proposed to save the energy of an orthogonal frequency-division multiplex (OFDM) decode-and-forward cooperative communication system, by allocating different resource blocks for decoding harvesting at relay destinations. The joint optimized maximize transmission rate destination, while ensuring supply relay. pairing algorithm are integrated achieve optimal solution. Simulation results illustrate benefits using TFBA-SWIPT in OFDM system over time-varying channels.