NDLI: Resilient Optical Fiber Ladder Network With OADMs to Multiplex Sensors: Binary-State Connectivity Analysis

Content Provider	IEEE Xplore Digital Library
Author	Urquhart, P.
Copyright Year	2001
Abstract	A novel resilient optical fiber ladder network to multiplex an array of sensors is simulated. The sensors, which can be of many types, are uniquely identified by wavelength-division multiplexing, where channel selection is performed by optical add-drop multiplexers (OADMs). The simulation is a “binary state connectivity analysis.” It predicts that the network: 1) recovers full service after the failure of any one of its interconnecting elements and 2) automatically identifies the affected element by “self-diagnosis.” All combinations of double failures are also explored. The network can recover all, or all but one, channels after nearly every double failure. Moreover, self-diagnosis identifies many of the failure pairs without ambiguity. Even when unique identification of double failure sites is not possible, self-diagnosis provides valuable clues to their whereabouts. Two network protection mechanisms (to recover operation after double failures) and two cabling configurations are critically compared. The network's performance is favorably contrasted with that of previously reported resilient ladder topologies, especially with respect to its tolerance of double failures.
Sponsorship	IEEE Sensors Council
Starting Page	2950
Ending Page	2967
Page Count	18
File Size	990199
File Format	PDF
ISSN	1530437X
Volume Number	12
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensor arrays Optical fiber LAN Add-drop multiplexers Local area networks Fault tolerance sensors Network fault tolerance optical fiber local area network (LAN) protection
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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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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