Optimization of Energy Harvesting MISO Communication System With Feedback

Optimization of a point-to-point (p2p) multiple-input single-output (MISO) communication system is considered when both the transmitter (TX) and the receiver (RX) have energy harvesting (EH) capabilities. The RX is interested in feeding back the channel state information (CSI) to the TX to help impr...

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Bibliographic Details
Published in:IEEE journal on selected areas in communications 2015-03, Vol.33 (3), p.396-406
Main Authors: Gangula, Rajeev, Gesbert, David, Gunduz, Deniz
Format: Article
Language:English
Subjects:
Energy harvesting
Limited feedback
Linear programming
Offline optimization
Optimization
Resource management
Throughput
Upper bound
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Summary:Optimization of a point-to-point (p2p) multiple-input single-output (MISO) communication system is considered when both the transmitter (TX) and the receiver (RX) have energy harvesting (EH) capabilities. The RX is interested in feeding back the channel state information (CSI) to the TX to help improve the transmission rate. The objective is to maximize the throughput by a deadline, subject to the EH constraints at the TX and the RX. The throughput metric considered is an upper bound on the ergodic rate of the MISO channel with beamforming and limited feedback. Feedback bit allocation and transmission policies that maximize the upper bound on the ergodic rate are obtained. Tools from majorization theory are used to simplify the formulated optimization problems. Optimal policies obtained for the modified problem outperform the naive scheme in which no intelligent management of energy is performed.
ISSN:0733-8716
1558-0008
DOI:10.1109/JSAC.2015.2391591