Performance Analysis of Wireless Powered Communication with Finite/Infinite Energy Storage

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Details zur Publikation

Autor(en): Morsi R, Michalopoulos D, Schober R
Herausgeber: IEEE
Jahr der Veröffentlichung: 2015
Seitenbereich: 2469-2475
ISSN: 1550-3607
Sprache: Englisch


Abstract

In this paper, we consider an energy harvesting (EH) node which harvests energy from a radio frequency (RF) signal broadcasted by an access point (AP) in the downlink (DL). The node stores the harvested energy in an energy buffer and uses the stored energy to transmit data to the AP in the uplink (UL). We consider a simple transmission policy, which accounts for the fact that in practice the EH node may not have knowledge of the EH profile nor of the UL channel state information. In particular, in each time slot, the EH node transmits with either a constant desired power or a lower power if not enough energy is available in its energy buffer. For this simple policy, we use the theory of discrete-time continuous-state Markov chains to analyze the limiting distribution of the stored energy for finite-and infinitesize energy buffers. Moreover, we take into account imperfections of the energy buffer and the circuit power consumption of the EH node. For a Rayleigh fading DL channel, we provide the limiting distribution of the energy buffer content in closed form. In addition, we analyze the average error rate (AER) and the outage probability of a Rayleigh faded UL channel and show that the diversity order is not affected by the finite capacity of the energy buffer. Our results reveal that, except for high outage probabilities and high AERs, the optimal transmit power by the EH node is less than the average harvested power and increases with the capacity of the energy buffer.


FAU-Autoren / FAU-Herausgeber

Michalopoulos, Diomidis
Lehrstuhl für Digitale Übertragung
Morsi, Rania
Lehrstuhl für Digitale Übertragung
Schober, Robert Prof. Dr.-Ing.
Lehrstuhl für Digitale Übertragung


Zitierweisen

APA:
Morsi, R., Michalopoulos, D., & Schober, R. (2015). Performance Analysis of Wireless Powered Communication with Finite/Infinite Energy Storage. In IEEE (Eds.), (pp. 2469-2475). London, UK, GB.

MLA:
Morsi, Rania, Diomidis Michalopoulos, and Robert Schober. "Performance Analysis of Wireless Powered Communication with Finite/Infinite Energy Storage." Proceedings of the International Conference on Communications ICC, London, UK Ed. IEEE, 2015. 2469-2475.

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