Optimization of Energy Harvesting MISO Communication System With Feedback

Author

Gangula, Rajeev ; Gesbert, David ; Gunduz, Deniz

Author_Institution

Mobile Commun. Dept., EURECOM, Sophia Antipolis, France

Volume

33

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

396

Lastpage

406

Abstract

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.

Keywords

energy harvesting; feedback; optimisation; telecommunication channels; telecommunication power management; MISO channel; channel state information; energy harvesting MISO communication system; ergodic rate; feedback bit allocation; majorization theory; point-to-point multiple-input single-output communication system; transmission policies; Bismuth; Linear programming; Optimization; Resource management; Throughput; Upper bound; Vectors; Energy harvesting; Limited feedback; MISO; Offline optimization; limited feedback; offline optimization;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/JSAC.2015.2391591

Filename

7009964