NDLI: Optimal link scheduling and channel assignment for convergecast in linear WirelessHART networks

Content Provider	IEEE Xplore Digital Library
Author	Haibo Zhang Soldati, P. Johansson, M.
Copyright Year	2009
Description	Author affiliation: School of Electrical Engineering, KTH, SE-10044 Stockholm, Sweden (Haibo Zhang; Soldati, P.; Johansson, M.)
Abstract	Convergecast, in which data from a set of sources is routed toward one data sink, is a critical functionality for wireless networks deployed for industrial monitoring and control. We address the joint link scheduling and channel assignment problem for convergecast in networks operating according to the recent WirelessHART standard. For a linear network with N single-buffer devices, we demonstrate that the minimum time to complete convergecast is 2N-1 time-slots, and that the minimum number of channels required for this operation is ⌈N/2⌉. When the devices are allowed to buffer multiple packets, we prove that the optimal convergecast time remains the same while the number of required channels can be reduced to . For both cases, we present jointly time- and channel-optimal scheduling policies with complexity $O(N^{2}).$ Numerical results demonstrate that our schemes are also efficient in terms of memory utilization.
Starting Page	1
Ending Page	8
File Size	4422674
Page Count	8
File Format	PDF
ISBN	9781424449194
DOI	10.1109/WIOPT.2009.5291641
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-23
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Job shop scheduling Network topology Wireless networks Industrial control Optimal control Telecommunication network reliability Communication system security Monitoring Delay
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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