Abstract
Wireless Sensor Networks are often considered as low-rate asynchronous systems for distributed monitoring. However, there are several real-time and high data-rate applications where the traditional behavior of WSNs could give raise to channel sharing problems, thus limiting the usefulness of this technology for these emerging fields. This article proposes and discusses PRISM (Protocol for Real-tIme Synchronous Monitoring), a novel protocol for real-time synchronous acquisitions in single-hop and multi-hop wireless sensor networks. The PRISM protocol allows to define the maximum number of nodes, the requirements on the network synchronization and the data-rate in a flexible manner in order to accommodate for different types of acquisitions. Its performance has been studied theoretically through numerical simulations. Moreover, the protocol has been tested in a fully-working wireless monitoring system based on the IEEE 802.15.4 physical standard. Results show the effectiveness and the efficiency of the proposed protocol.
Keywords: Real-time, wireless sensor networks, monitoring.
International Journal of Sensors, Wireless Communications and Control
Title:PRISM: A Novel Protocol for Real-Time Synchronous Acquisitions in WSNs
Volume: 1 Issue: 2
Author(s): Emanuele Goldoni and Paolo Gamba
Affiliation:
Keywords: Real-time, wireless sensor networks, monitoring.
Abstract: Wireless Sensor Networks are often considered as low-rate asynchronous systems for distributed monitoring. However, there are several real-time and high data-rate applications where the traditional behavior of WSNs could give raise to channel sharing problems, thus limiting the usefulness of this technology for these emerging fields. This article proposes and discusses PRISM (Protocol for Real-tIme Synchronous Monitoring), a novel protocol for real-time synchronous acquisitions in single-hop and multi-hop wireless sensor networks. The PRISM protocol allows to define the maximum number of nodes, the requirements on the network synchronization and the data-rate in a flexible manner in order to accommodate for different types of acquisitions. Its performance has been studied theoretically through numerical simulations. Moreover, the protocol has been tested in a fully-working wireless monitoring system based on the IEEE 802.15.4 physical standard. Results show the effectiveness and the efficiency of the proposed protocol.
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Cite this article as:
Goldoni Emanuele and Gamba Paolo, PRISM: A Novel Protocol for Real-Time Synchronous Acquisitions in WSNs, International Journal of Sensors, Wireless Communications and Control 2011; 1 (2) . https://dx.doi.org/10.2174/2210327911101020080
DOI https://dx.doi.org/10.2174/2210327911101020080 |
Print ISSN 2210-3279 |
Publisher Name Bentham Science Publisher |
Online ISSN 2210-3287 |
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