Energy and bandwidth-efficient Wireless Sensor Networks for monitoring high-frequency events

Md Zakirul Alam Bhuiyan, Guojun Wang, Jiannong Cao, Jie Wu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

30 Citations (Scopus)

Abstract

Wireless Sensor Networks (WSNs) are mostly deployed to detect events (i.e., objects or physical changes) at a high/low frequency sampling that is usually adapted by a central unit (or a sink), thus requiring additional resource usage in WSNs. However, the problem of autonomous adaptive sampling regarding the detection of events has not been studied before. In this paper, we propose a novel scheme, termed 'event-sensitive adaptive sampling and low-cost monitoring (e-Sampling)' by addressing the problem in two stages, which lead to reduced resource usage (e.g., energy, radio bandwidth) in WSNs. First, e-Sampling provides a solution to adaptive sampling that automatically switches between high- and low-frequency intervals to reduce the resource usage while minimizing false negative detections. Second, by analyzing the frequency content, e-Sampling presents an event identification algorithm suitable for decentralized computing in resource-constrained WSNs. In the absence of an event, 'uninteresting' data is not transmitted to the sink. We apply e-Sampling to structural health monitoring (SHM), which is a typical application of high frequency events. Evaluation via both simulations and experiments validates the advantages of e-Sampling in low-cost event monitoring, and in expanding the capacity of WSNs for high data rate applications.
Original languageEnglish
Title of host publication2013 IEEE International Conference on Sensing, Communications and Networking, SECON 2013
PublisherIEEE Computer Society
Pages194-202
Number of pages9
ISBN (Print)9781479902309
DOIs
Publication statusPublished - 1 Jan 2013
Event2013 10th Annual IEEE Communications Society Conference on Sensing and Communication in Wireless Networks, SECON 2013 - New Orleans, LA, United States
Duration: 24 Jun 201327 Jun 2013

Conference

Conference2013 10th Annual IEEE Communications Society Conference on Sensing and Communication in Wireless Networks, SECON 2013
Country/TerritoryUnited States
CityNew Orleans, LA
Period24/06/1327/06/13

Keywords

  • Decentralized signal processing
  • Energy-efficiency
  • Event monitoring
  • Wireless sensor networks

ASJC Scopus subject areas

  • Computer Networks and Communications

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