Optimal Energy Management For Energy Harvesting Transmitter And Receiver With Helper

Abstract

We study energy harvesting (EH) transmitter and receiver, where the receiver decodes data using the harvested energy from the nature and from an independent EH node, named helper. Helper cooperates with the receiver by transferring its harvested energy to the receiver over an orthogonal fading channel. We study an offline optimal power management policy to maximize the reliable information rate. The harvested energy in all three nodes are assumed to be known. We consider four different scenarios; First, for the case that both transmitter and the receiver have batteries, we show that the optimal policy is transferring the helper's harvested energy to the receiver, immediately. Next, for the case of non-battery receiver and full power transmitter, we model a virtual EH receiver with minimum energy constraint to achieve an optimal policy. Then, we consider a non-battery EH receiver and EH transmitter with battery. Finally, we derive optimal power management wherein neither the transmitter nor the receiver have batteries. We propose three iterative algorithms to compute optimal energy management policies. Numerical results are presented to corroborate the advantage of employing the helper.

Publication Date

2-2-2017

Publication Title

Proceedings of 2016 International Symposium on Information Theory and Its Applications, ISITA 2016

Number of Pages

562-566

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

85015187428 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85015187428

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