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Sensors 2014, 14(9), 15760-15785; doi:10.3390/s140915760

Reliability of Wireless Sensor Networks

Centro de Informática, Universidade Federal de Pernambuco, Recife, PE, 50740-560, Brazil
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Received: 2 May 2014 / Revised: 2 August 2014 / Accepted: 11 August 2014 / Published: 25 August 2014
(This article belongs to the Special Issue Wireless Sensor Networks and the Internet of Things)

Abstract

Wireless Sensor Networks (WSNs) consist of hundreds or thousands of sensor nodes with limited processing, storage, and battery capabilities. There are several strategies to reduce the power consumption of WSN nodes (by increasing the network lifetime) and increase the reliability of the network (by improving the WSN Quality of Service). However, there is an inherent conflict between power consumption and reliability: an increase in reliability usually leads to an increase in power consumption. For example, routing algorithms can send the same packet though different paths (multipath strategy), which it is important for reliability, but they significantly increase the WSN power consumption. In this context, this paper proposes a model for evaluating the reliability of WSNs considering the battery level as a key factor. Moreover, this model is based on routing algorithms used by WSNs. In order to evaluate the proposed models, three scenarios were considered to show the impact of the power consumption on the reliability of WSNs. View Full-Text
Keywords: wireless sensor network; reliability; power consumption; reliability block diagram wireless sensor network; reliability; power consumption; reliability block diagram
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Dâmaso, A.; Rosa, N.; Maciel, P. Reliability of Wireless Sensor Networks. Sensors 2014, 14, 15760-15785.

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