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Sensors 2017, 17(4), 695; doi:10.3390/s17040695

On Multi-Hop Decode-and-Forward Cooperative Relaying for Industrial Wireless Sensor Networks

Faculty of Engineering, Norwegian University of Science and Technology (NTNU), N-2815 Gjøvik, Norway
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Academic Editor: Leonhard M. Reindl
Received: 2 February 2017 / Revised: 21 March 2017 / Accepted: 26 March 2017 / Published: 28 March 2017
(This article belongs to the Section Sensor Networks)
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Abstract

Wireless sensor networks (WSNs) will play a fundamental role in the realization of Internet of Things and Industry 4.0. Arising from the presence of spatially distributed sensor nodes in a sensor network, cooperative diversity can be achieved by using the sensor nodes between a given source-destination pair as intermediate relay stations. In this paper, we investigate the end-to-end average bit error rate (BER) and the channel capacity of a multi-hop relay network in the presence of impulsive noise modeled by the well-known Middleton’s class-A model. Specifically, we consider a multi-hop decode-and-forward (DF) relay network over Nakagami-m fading channel due to its generality, but also due to the absence of reported works in this area. Closed-form analytical expressions for the end-to-end average BER and the statistical properties of the end-to-end channel capacity are obtained. The impacts of the channel parameters on these performance quantities are evaluated and discussed. View Full-Text
Keywords: wireless sensor network; cooperative relay; decode-and-forward; fading channel; harsh environment; impulsive noise; system performance; channel capacity; bit error rate wireless sensor network; cooperative relay; decode-and-forward; fading channel; harsh environment; impulsive noise; system performance; channel capacity; bit error rate
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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).

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MDPI and ACS Style

Ai, Y.; Cheffena, M. On Multi-Hop Decode-and-Forward Cooperative Relaying for Industrial Wireless Sensor Networks. Sensors 2017, 17, 695.

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