Resource Allocation for Wireless Powered Multi-Pair Massive Antenna Relaying With Zero Forcing Beamforming

Rate Optimization of Two-Way Relaying with Wireless Information and Power Transfer

“…In particular, various relaying protocols have been rebuilt to support energy harvesting devices in cooperative networks [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26], where relays can be categorized into either energy harvesting nodes or energy transmission nodes. Energy harvesting relays are as low in complexity as communicating devices and harvest the energy in helping the data exchange of the devices in general [11][12][13][14][15][16][17][18][19][23][24][25][26].…”

“…Energy harvesting relays are as low in complexity as communicating devices and harvest the energy in helping the data exchange of the devices in general [11][12][13][14][15][16][17][18][19][23][24][25][26]. On the other hand, energy transmission relays are as highly complex as base stations so that the relays transfer the power and information to the communicating devices [20][21][22]; the relays even employ massive antennas to leverage the efficiency in the power and information transfer at a high cost in implementation [27,28]. This paper focuses on the former case in which there is no infrastructure relay and one of neighboring peer devices takes the role of signal relaying by spending the energy harvested by means of simultaneous wireless power and information transfer (SWIPT).…”