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Sensors 2010, 10(4), 2901-2918; doi:10.3390/s100402901

Investigation on Reliability and Scalability of an FBG-Based Hierarchical AOFSN

1
School of Information Technology, Chonbuk National University, Jeonju 561-756, Korea
2
GRID Middleware Research Center of ICC, Korea Advanced Institute of Science and Technology, Taejon, 305, Korea
3
The State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
*
Author to whom correspondence should be addressed.
Received: 1 February 2010 / Revised: 25 February 2010 / Accepted: 10 March 2010 / Published: 29 March 2010
(This article belongs to the Section Chemical Sensors)
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Abstract

The reliability and scalability of large-scale based optical fiber sensor networks (AOFSN) are considered in this paper. The AOFSN network consists of three-level hierarchical sensor network architectures. The first two levels consist of active interrogation and remote nodes (RNs) and the third level, called the sensor subnet (SSN), consists of passive Fiber Bragg Gratings (FBGs) and a few switches. The switch architectures in the RN and various SSNs to improve the reliability and scalability of AOFSN are studied. Two SSNs with a regular topology are proposed to support simple routing and scalability in AOFSN: square-based sensor cells (SSC) and pentagon-based sensor cells (PSC). The reliability and scalability are evaluated in terms of the available sensing coverage in the case of one or multiple link failures. View Full-Text
Keywords: AOFSN; FBG; hierarchical; reliability scalability AOFSN; FBG; hierarchical; reliability scalability
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Peng, L.-M.; Li, X.-W.; Yang, W.-H.; Kim, Y.-C. Investigation on Reliability and Scalability of an FBG-Based Hierarchical AOFSN. Sensors 2010, 10, 2901-2918.

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