Volume 7 Number 12 (Dec. 2012)
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JSW 2012 Vol.7(12): 2886-2893 ISSN: 1796-217X
doi: 10.4304//jsw.7.12.2886-2893

Object Search for the Internet of Things Using Tag-based Location Signatures

Jung-Sing Jwo1, Ting-Chia Chen1, Mengru Tu2
1Department of Computer Science, Tunghai University, Taichung, Taiwan
2Industrial Technology Research Institute, Hsinchu, Taiwan

Abstract—In this paper, an object search solution for the Internet of Things (IoT) is proposed. This study first differentiates localization and searching. Localization is to calculate an object’s current location. Searching is to return a set of locations where a target object could be. It is possible that the locations of the returned set are not contiguous. Searching accuracy can be improved if the number of the returned locations is small. Even though localization technique is applicable to searching applications, a simpler and easier solution will attract more enterprise users. In this paper, based on a concept called location signature, defined by a set of reference tags, an object searching method named Location Signature Search (LSS) is proposed. The study of LSS shows that the searching accuracy can be very high if a location signature is not shared by too many locations. Since location signatures are affected by the deployment of the reference tags, trade-off between searching accuracy and implementation cost is achievable. A real world experiment is conducted in this research. The results show that LSS indeed is a practical method for object searching applications.

Index Terms—Internet of Things, location signature, object search, RFID, ubiquitous computing

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Cite: Jung-Sing Jwo, Ting-Chia Chen, Mengru Tu, "Object Search for the Internet of Things Using Tag-based Location Signatures," Journal of Software vol. 7, no. 12, pp. 2886-2893, 2012.

General Information

ISSN: 1796-217X (Online)
Frequency: Monthly
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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