NDLI: Simulation analysis of IEEE 802.15.4 for wireless networked control systems

Content Provider	IEEE Xplore Digital Library
Author	Macedo, P. Afonso, J.A.
Copyright Year	2009
Description	Author affiliation: Department of Industrial Electronics, University of Minho, Guimarães, Portugal (Macedo, P.; Afonso, J.A.)
Abstract	The deployment of wireless networks in industrial environments can bring several advantages over their wired counterparts; however, the characteristics of the wireless channels pose challenges to the provisioning of quality of service (QoS) that are not seen in wired networks. This paper provides an analysis of how important QoS parameters, such as message delivery ratio, delay and energy consumption, vary as a function of the number of sensor nodes injecting traffic in IEEE 802.15.4 networks operating in unbeaconed mode. Results show that the peer-to-peer topology enables better performance than the star topology, under the same conditions, indicating that the former is a better option if centralized control is not required. The use of retransmissions increases significantly the reliability of the network; however, even a high number of retransmissions are not enough to provide full reliability when the channel is highly affected by errors. Results also show that presence of hidden nodes can severely degrade the performance of the network, while the reduction of the turnaround time can improve the performance.
Starting Page	2482
Ending Page	2487
File Size	1721427
Page Count	6
File Format	PDF
ISBN	9781424446483
ISSN	1553572X
e-ISBN	9781424446506
DOI	10.1109/IECON.2009.5415228
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-03
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analytical models Networked control systems Quality of service Peer to peer computing Network topology Wireless networks Electrical equipment industry Wireless sensor networks Energy consumption Sensor phenomena and characterization
Content Type	Text
Resource Type	Article

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