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Sensors 2015, 15(11), 28193-28223; doi:10.3390/s151128193

Optimizing the Reliability and Performance of Service Composition Applications with Fault Tolerance in Wireless Sensor Networks

1
School of Mathematics and Computer Science, Hubei University of Arts and Science, Xiangyang 441053, China
2
School of Computer Science, Colorado Technical University, Colorado Springs, CO 80907, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 22 September 2015 / Revised: 18 October 2015 / Accepted: 2 November 2015 / Published: 6 November 2015
(This article belongs to the Special Issue Mobile Sensor Computing: Theory and Applications)
View Full-Text   |   Download PDF [11054 KB, uploaded 6 November 2015]   |  

Abstract

The services composition technology provides flexible methods for building service composition applications (SCAs) in wireless sensor networks (WSNs). The high reliability and high performance of SCAs help services composition technology promote the practical application of WSNs. The optimization methods for reliability and performance used for traditional software systems are mostly based on the instantiations of software components, which are inapplicable and inefficient in the ever-changing SCAs in WSNs. In this paper, we consider the SCAs with fault tolerance in WSNs. Based on a Universal Generating Function (UGF) we propose a reliability and performance model of SCAs in WSNs, which generalizes a redundancy optimization problem to a multi-state system. Based on this model, an efficient optimization algorithm for reliability and performance of SCAs in WSNs is developed based on a Genetic Algorithm (GA) to find the optimal structure of SCAs with fault-tolerance in WSNs. In order to examine the feasibility of our algorithm, we have evaluated the performance. Furthermore, the interrelationships between the reliability, performance and cost are investigated. In addition, a distinct approach to determine the most suitable parameters in the suggested algorithm is proposed. View Full-Text
Keywords: wireless sensor networks; services composition; reliability optimization; performance optimization; fault tolerance wireless sensor networks; services composition; reliability optimization; performance optimization; fault tolerance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wu, Z.; Xiong, N.; Huang, Y.; Xu, D.; Hu, C. Optimizing the Reliability and Performance of Service Composition Applications with Fault Tolerance in Wireless Sensor Networks. Sensors 2015, 15, 28193-28223.

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