Next Article in Journal
NCO-sP(EO-stat-PO) Coatings on Gold Sensors—a QCM Study of Hemocompatibility
Previous Article in Journal
Modeling of Beams’ Multiple-Contact Mode with an Application in the Design of a High-g Threshold Microaccelerometer
Article Menu

Export Article

Open AccessArticle
Sensors 2011, 11(5), 5229-5252; doi:10.3390/s110505229

Retrieval of the Extreme Values under Deadline Constraints in Wireless Sensor Networks

Department of Computer and Communications, Korea University, Anam-dong Seongbuk-gu, 130-701, Seoul, Korea
Department of Digital Contents Convergence, Seoul National University, Seoul, Korea
Electronics and Telecommunications Research Institute, 138 Gajeongno, Yuseong-gu, Daejeon, 305-700, Korea
Author to whom correspondence should be addressed.
Received: 20 April 2011 / Revised: 2 May 2011 / Accepted: 11 May 2011 / Published: 12 May 2011
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [940 KB, uploaded 21 June 2014]   |  


We consider a problem of retrieving the extreme value among sensed data under deadline constraints in wireless sensor networks with potential applications to alarm systems. The sensed data is mapped to a score which we adopt as a unified measure of the relative urgency of the data. The objective is to retrieve the data with the maximum score. We propose fully distributed schemes for contention based medium access and data combining. The proposed medium access scheme uses a randomized back-off which is controlled based on the score of the data to be transmitted. Data combining techniques are proposed to further suppress unnecessary traffic and reduce contention. The key observation is that one should aggressively prioritize packets with high score, up to an extent that does not incur excessive contention in channel access. Designed to capture such aspect, the proposed scheme is shown to substantially decrease the latency of the retrieval. View Full-Text
Keywords: wireless sensor networks; medium access control; distributed algorithm; latency wireless sensor networks; medium access control; distributed algorithm; latency

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Baek, S.J.; Yu, X.; Lee, K.; Kim, H. Retrieval of the Extreme Values under Deadline Constraints in Wireless Sensor Networks. Sensors 2011, 11, 5229-5252.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top