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Sensors 2009, 9(9), 6869-6896;

An Overview on Wireless Sensor Networks Technology and Evolution

WiLAB, DEIS at University of Bologna, Bologna, Italy
WiLAB, ENDIF at University of Ferrara, Ferrara, Italy
Author to whom correspondence should be addressed.
Received: 25 July 2009 / Revised: 24 August 2009 / Accepted: 25 August 2009 / Published: 31 August 2009
(This article belongs to the Special Issue Wireless Sensor Technologies and Applications)
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Wireless sensor networks (WSNs) enable new applications and require non-conventional paradigms for protocol design due to several constraints. Owing to the requirement for low device complexity together with low energy consumption (i.e., long network lifetime), a proper balance between communication and signal/data processing capabilities must be found. This motivates a huge effort in research activities, standardization process, and industrial investments on this field since the last decade. This survey paper aims at reporting an overview of WSNs technologies, main applications and standards, features in WSNs design, and evolutions. In particular, some peculiar applications, such as those based on environmental monitoring, are discussed and design strategies highlighted; a case study based on a real implementation is also reported. Trends and possible evolutions are traced. Emphasis is given to the IEEE 802.15.4 technology, which enables many applications of WSNs. Some example of performance characteristics of 802.15.4-based networks are shown and discussed as a function of the size of the WSN and the data type to be exchanged among nodes. View Full-Text
Keywords: wireless sensor networks; enabling technologies; applications; IEEE 802.15.4 wireless sensor networks; enabling technologies; applications; IEEE 802.15.4
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Buratti, C.; Conti, A.; Dardari, D.; Verdone, R. An Overview on Wireless Sensor Networks Technology and Evolution. Sensors 2009, 9, 6869-6896.

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