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Sensors 2014, 14(12), 22706-22736; doi:10.3390/s141222706

Analyzing Comprehensive QoS with Security Constraints for Services Composition Applications 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.
Received: 27 July 2014 / Revised: 14 October 2014 / Accepted: 24 November 2014 / Published: 1 December 2014
(This article belongs to the Special Issue Sensor Computing for Mobile Security and Big Data Analytics)
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Abstract

Services composition is fundamental to software development in multi-service wireless sensor networks (WSNs). The quality of service (QoS) of services composition applications (SCAs) are confronted with severe challenges due to the open, dynamic, and complex natures of WSNs. Most previous research separated various QoS indices into different fields and studied them individually due to the computational complexity. This approach ignores the mutual influence between these QoS indices, and leads to a non-comprehensive and inaccurate analysis result. The universal generating function (UGF) shows the speediness and precision in QoS analysis. However, only one QoS index at a time can be analyzed by the classic UGF. In order to efficiently analyze the comprehensive QoS of SCAs, this paper proposes an improved UGF technique—vector universal generating function (VUGF)—which considers the relationship between multiple QoS indices, including security, and can simultaneously analyze multiple QoS indices. The numerical examples demonstrate that it can be used for the evaluation of the comprehensive QoS of SCAs subjected to the security constraint in WSNs. Therefore, it can be effectively applied to the optimal design of multi-service WSNs. View Full-Text
Keywords: wireless sensor networks; quality of service; security constraint; services composition; universal generating function wireless sensor networks; quality of service; security constraint; services composition; universal generating function
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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Xiong, N.; Wu, Z.; Huang, Y.; Xu, D. Analyzing Comprehensive QoS with Security Constraints for Services Composition Applications in Wireless Sensor Networks. Sensors 2014, 14, 22706-22736.

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