Next Article in Journal
Gas Measurement Using Static Fourier Transform Infrared Spectrometers
Next Article in Special Issue
Wireless Monitoring of Induction Machine Rotor Physical Variables
Previous Article in Journal
HDOMO: Smart Sensor Integration for an Active and Independent Longevity of the Elderly
Previous Article in Special Issue
Joint Power Charging and Routing in Wireless Rechargeable Sensor Networks
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(11), 2604; https://doi.org/10.3390/s17112604

Wireless Energy Harvesting Two-Way Relay Networks with Hardware Impairments

1
Chongqing Key Lab of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2
School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA
*
Author to whom correspondence should be addressed.
Received: 15 October 2017 / Revised: 6 November 2017 / Accepted: 7 November 2017 / Published: 13 November 2017
(This article belongs to the Special Issue Wireless Rechargeable Sensor Networks)
Full-Text   |   PDF [972 KB, uploaded 16 November 2017]   |  

Abstract

This paper considers a wireless energy harvesting two-way relay (TWR) network where the relay has energy-harvesting abilities and the effects of practical hardware impairments are taken into consideration. In particular, power splitting (PS) receiver is adopted at relay to harvests the power it needs for relaying the information between the source nodes from the signals transmitted by the source nodes, and hardware impairments is assumed suffered by each node. We analyze the effect of hardware impairments on both decode-and-forward (DF) relaying and amplify-and-forward (AF) relaying networks. By utilizing the obtained new expressions of signal-to-noise-plus-distortion ratios, the exact analytical expressions of the achievable sum rate and ergodic capacities for both DF and AF relaying protocols are derived. Additionally, the optimal power splitting (OPS) ratio that maximizes the instantaneous achievable sum rate is formulated and solved for both protocols. The performances of DF and AF protocols are evaluated via numerical results, which also show the effects of various network parameters on the system performance and on the OPS ratio design. View Full-Text
Keywords: energy harvesting; two-way relay; hardware impairments; ergodic capacity; optimal power splitting energy harvesting; two-way relay; hardware impairments; ergodic capacity; optimal power splitting
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Peng, C.; Li, F.; Liu, H. Wireless Energy Harvesting Two-Way Relay Networks with Hardware Impairments. Sensors 2017, 17, 2604.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top