Interference-Free Wakeup Scheduling with Consecutive Constraints in Wireless Sensor Networks
Joint Authors
Source
International Journal of Distributed Sensor Networks
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-07
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Telecommunications Engineering
Information Technology and Computer Science
Abstract EN
Wakeup scheduling has been widely used in wireless sensor networks (WSNs), for it can reduce the energy wastage caused by the idle listening state.
In a traditional wakeup scheduling, sensor nodes start up numerous times in a period, thus consuming extra energy due to state transitions (e.g., from the sleep state to the active state).
In this paper, we address a novel interference-free wakeup scheduling problem called compact wakeup scheduling, in which a node needs to wake up only once to communicate bidirectionally with all its neighbors.
However, not all communication graphs have valid compact wakeup schedulings, and it is NP-complete to decide whether a valid compact wakeup scheduling exists for an arbitrary graph.
In particular, tree and grid topologies, which are commonly used in WSNs, have valid compact wakeup schedulings.
We propose polynomial-time algorithms using the optimum number of time slots in a period for trees and grid graphs.
Simulations further validate our theoretical results.
American Psychological Association (APA)
Ma, Junchao& Lou, Wei. 2012. Interference-Free Wakeup Scheduling with Consecutive Constraints in Wireless Sensor Networks. International Journal of Distributed Sensor Networks،Vol. 2012, no. 2012, pp.1-17.
https://search.emarefa.net/detail/BIM-478664
Modern Language Association (MLA)
Ma, Junchao& Lou, Wei. Interference-Free Wakeup Scheduling with Consecutive Constraints in Wireless Sensor Networks. International Journal of Distributed Sensor Networks No. 2012 (2012), pp.1-17.
https://search.emarefa.net/detail/BIM-478664
American Medical Association (AMA)
Ma, Junchao& Lou, Wei. Interference-Free Wakeup Scheduling with Consecutive Constraints in Wireless Sensor Networks. International Journal of Distributed Sensor Networks. 2012. Vol. 2012, no. 2012, pp.1-17.
https://search.emarefa.net/detail/BIM-478664
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-478664