Critical-Path Aware Scheduling for Latency Efficient Broadcast in Duty-Cycled Wireless Sensor Networks
Joint Authors
Le, Duc-Tai
Im, Giyeol
Le Duc, Thang
Zalyubovskiy, Vyacheslav V.
Choo, Hyunseung
Kim, Dongsoo S.
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-22
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Information Technology and Computer Science
Abstract EN
Minimum latency scheduling has arisen as one of the most crucial problems for broadcasting in duty-cycled Wireless Sensor Networks (WSNs).
Typical solutions for the broadcast scheduling iteratively search for nodes able to transmit a message simultaneously.
Other nodes are prevented from transmissions to ensure that there is no collision in a network.
Such collision-preventions result in extra delays for a broadcast and may increase overall latency if the delays occur along critical paths of the network.
To facilitate the broadcast latency minimization, we propose a novel approach, critical-path aware scheduling (CAS), which schedules transmissions with a preference of nodes in critical paths of a duty-cycled WSN.
This paper presents two schemes employing CAS which produce collision-free and collision-tolerant broadcast schedules, respectively.
The collision-free CAS scheme guarantees an approximation ratio of (Δ-1)T in terms of latency, where Δ denotes the maximum node degree in a network.
By allowing collision at noncritical nodes, the collision-tolerant CAS scheme reduces up to 10.2 percent broadcast latency compared with the collision-free ones while requiring additional transmissions for the noncritical nodes experiencing collisions.
Simulation results show that broadcast latencies of the two proposed schemes are significantly shorter than those of the existing methods.
American Psychological Association (APA)
Le, Duc-Tai& Im, Giyeol& Le Duc, Thang& Zalyubovskiy, Vyacheslav V.& Kim, Dongsoo S.& Choo, Hyunseung. 2018. Critical-Path Aware Scheduling for Latency Efficient Broadcast in Duty-Cycled Wireless Sensor Networks. Wireless Communications and Mobile Computing،Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1216057
Modern Language Association (MLA)
Le, Duc-Tai…[et al.]. Critical-Path Aware Scheduling for Latency Efficient Broadcast in Duty-Cycled Wireless Sensor Networks. Wireless Communications and Mobile Computing No. 2018 (2018), pp.1-16.
https://search.emarefa.net/detail/BIM-1216057
American Medical Association (AMA)
Le, Duc-Tai& Im, Giyeol& Le Duc, Thang& Zalyubovskiy, Vyacheslav V.& Kim, Dongsoo S.& Choo, Hyunseung. Critical-Path Aware Scheduling for Latency Efficient Broadcast in Duty-Cycled Wireless Sensor Networks. Wireless Communications and Mobile Computing. 2018. Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1216057
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1216057