410 research outputs found
Towards Optimal Energy Harvesting Receiver Design in MIMO Systems
In this paper, we investigate a multiple-input multiple-output (MIMO) system
with simultaneous information detection (ID) and energy harvesting (EH)
receiver. This point-to-point system operates in the vicinity of active
interfering nodes. The receiver performs power splitting where a portion of
received signal undergoes analog energy harvesting circuitry. Further, the
information content of the other portion is extracted after performing digital
beamforming. In this MIMO system, information carrier eigen-modes are not
necessarily the eigen-modes with the strongest energy level. Hence, it is
beneficial to perform independent beamforming at the receiver of MIMO-P2P
channel. Here, we utilize a hybrid analog/digital beamforming for the purpose
of simultaneous ID and EH in such scenarios. This design, provides extra design
degrees-of-freedom in eigen-mode selection for ID and EH purposes
independently. Worst-case performance of this receiver structure is discussed.
Finally, its benefits is compared to the classical receiver structure and the
gains are highlighted
- …