Time-critical data delivery in wireless sensor networks

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

A number of wireless sensor network (WSN) applications demand timely data delivery. However, existing WSNs are designed to conserve energy and not to support timely data transmission. This paper shows how WSNs can be dimensioned, deployed and operated such that both reliable and timely data delivery is ensured while scarce energy is preserved. The presented solution employs a novel Medium Access Control (MAC) protocol that incorporates topology control mechanisms to ensure timely data delivery and reliability control mechanisms to deal with inherently fluctuating wireless links. An industrial process automation and control scenario at an oil refinery in Portugal is used to define protocol requirements. The paper details a TinyOS implementation of the protocol and its evaluation in a testbed. Under high traffic load, the protocol delivers 100% of data in time using a maximum node duty cycle as little as 2.48%. In an idle network a maximum node duty cycle of only 0.62% is achieved. This proposed protocol is thus an extremely energy efficient solution for time-critical data delivery.

Original languageEnglish
Title of host publicationDistributed Computing in Sensor Systems - 6th IEEE International Conference, DCOSS 2010, Proceedings
Pages216-229
Number of pages14
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event6th IEEE International Conference on Distributed Computing in Sensor Systems, DCOSS 2010 - Santa Barbara, CA, United States
Duration: 21 Jun 201023 Jun 2010

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume6131 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference6th IEEE International Conference on Distributed Computing in Sensor Systems, DCOSS 2010
Country/TerritoryUnited States
CitySanta Barbara, CA
Period21/06/1023/06/10

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