NDLI: Link observability without path enumeration: A revisit

Content Provider	IEEE Xplore Digital Library
Author	ManWo Ng
Copyright Year	2012
Description	Author affiliation: Department of Modeling, Simulation and Visualization Engineering & the Department of Civil and Environmental Engineering at Old Dominion University, Norfolk, VA 23529 USA (ManWo Ng)
Abstract	In this paper we revisit the following link observability problem: Determine the smallest subset of links in a traffic network for counting sensor installation, in such a way that it becomes possible to infer the flows on all remaining links. While a solution methodology has already been proposed in the literature, unfortunately, path enumeration was required which is infeasible for large-scale networks. In this work, we present a reformulation of the link observability problem, requiring only node enumeration. Using this node-based approach, we prove a conjecture made in the literature by deriving an explicit relationship between the number of nodes and links in a transportation network, and the minimum number of sensors to install in order to be able to infer all link flows. Numerical results are reported and discussed.
Starting Page	1407
Ending Page	1410
File Size	196730
Page Count	4
File Format	PDF
ISBN	9781467330640
ISSN	21530009
e-ISBN	9781467330633
e-ISBN	9781467330626
DOI	10.1109/ITSC.2012.6338622
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transportation Observability Estimation Upper bound Reliability Planning Network topology
Content Type	Text
Resource Type	Article

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