PRISM: A Novel Protocol for Real-Time Synchronous Acquisitions in WSNs

Author(s): Emanuele Goldoni, Paolo Gamba

Journal Name: International Journal of Sensors, Wireless Communications and Control

Volume 1 , Issue 2 , 2011

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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.

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Article Details

Year: 2011
Published on: 17 June, 2012
Page: [80 - 87]
Pages: 8
DOI: 10.2174/2210327911101020080
Price: $25

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