Joint resource allocation in SWIPT-based multi-antenna decode-and-forward relay networks.

In this paper, we consider relay-assisted simultaneous wireless information and power transfer (SWIPT) for two-hop cooperative transmission, where a half-duplex multiantenna relay adopts decode-and-forward relaying strategy for information forwarding. The relay is assumed to be energy-free and needs to harvest energy from the source node. By embedding power splitting (PS) at each relay antenna to ...