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Sensors 2012, 12(12), 17446-17462; doi:10.3390/s121217446
Article

A Mobile Asset Tracking System Architecture under Mobile-Stationary Co-Existing WSNs

1
, 1
, 2
 and 1,*
Received: 22 October 2012; in revised form: 22 November 2012 / Accepted: 12 December 2012 / Published: 14 December 2012
(This article belongs to the Special Issue Ubiquitous Sensing)
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Abstract: The tracking of multiple wireless mobile nodes is not easy with current legacy WSN technologies, due to their inherent technical complexity, especially when heavy traffic and frequent movement of mobile nodes are encountered. To enable mobile asset tracking under these legacy WSN systems, it is necessary to design a specific system architecture that can manage numerous mobile nodes attached to mobile assets. In this paper, we present a practical system architecture including a communication protocol, a three-tier network, and server-side middleware for mobile asset tracking in legacy WSNs consisting of mobile-stationary co-existing infrastructures, and we prove the functionality of this architecture through careful evaluation in a test bed. Evaluation was carried out in a microwave anechoic chamber as well as on a straight road near our office. We evaluated communication mobility performance between mobile and stationary nodes, location-awareness performance, system stability under numerous mobile node conditions, and the successful packet transfer rate according to the speed of the mobile nodes. The results indicate that the proposed architecture is sufficiently robust for application in realistic mobile asset tracking services that require a large number of mobile nodes.
Keywords: pervasive computing; sensor network architecture; mobile asset tracking pervasive computing; sensor network architecture; mobile asset tracking
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.

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MDPI and ACS Style

Kim, T.H.; Jo, H.G.; Lee, J.S.; Kang, S.J. A Mobile Asset Tracking System Architecture under Mobile-Stationary Co-Existing WSNs. Sensors 2012, 12, 17446-17462.

AMA Style

Kim TH, Jo HG, Lee JS, Kang SJ. A Mobile Asset Tracking System Architecture under Mobile-Stationary Co-Existing WSNs. Sensors. 2012; 12(12):17446-17462.

Chicago/Turabian Style

Kim, Tae H.; Jo, Hyeong G.; Lee, Jae S.; Kang, Soon J. 2012. "A Mobile Asset Tracking System Architecture under Mobile-Stationary Co-Existing WSNs." Sensors 12, no. 12: 17446-17462.



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