Wireless Information and Power Transfer: Architecture Design and Rate-Energy Tradeoff
Simultaneous information and power transfer over the wireless channels potentially offers great convenience to mobile users. Yet practical receiver designs impose technical constraints on its hardware realization, as practical circuits for harvesting energy from radio signals are not yet able to decode the carried information directly. To make theoretical progress, the authors propose a general receiver operation, namely, Dynamic Power Splitting (DPS), which splits the received signal with adjustable power ratio for energy harvesting and information decoding, separately. Three special cases of DPS, namely, Time Switching (TS), Static Power Splitting (SPS) and On-off Power Splitting (OPS) are investigated.