Transmission Strategies for Remote Estimation under Energy Harvesting Constraints
Paper i proceeding, 2016

We consider the remote estimation of a time- correlated field using an energy harvesting (EH) sensor. The sensor observes the unknown field and communicates its observa- tions to a remote fusion center using an amplify-forward strategy. We consider the design of optimal transmission strategies in order to minimize the mean-square error (MSE) at the fusion center. Contrary to traditional approaches, the degree of correlation between the field values constitutes an important aspect of our formulation. We provide the optimal power allocation strategies for a number of illustrative scenarios, including the circularly wide-sense stationary (c.w.s.s.) signals with static correlation coefficient and the sampled low-pass c.w.s.s. signals. Based on these results, we propose low-complexity policies for the general case. Numerical evaluations illustrate the performance of the optimal and the low-complexity policies.

amplify-forward

remote estimation

linear encoding

energy harvesting

correlated signal

sensing

signal recovery

off-line optimization

correlated field

MMSE

signal reconstruction

distortion minimization

Författare

Ayca Ozcelikkale

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

Tomas McKelvey

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

Mats Viberg

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

European Signal Process. Conf. (EUSIPCO) 2016

2219-5491 (ISSN)

572-576

Styrkeområden

Informations- och kommunikationsteknik

Energi

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/EUSIPCO.2016.7760313

ISBN

978-099286265-7

Mer information

Skapat

2017-10-07