Title

Processing Approximate Moving Range Queries In Mobile Sensor Environments

Keywords

Location databases; Moving objects; Moving range queries over mobile objects; Sensors; Uncertainty

Abstract

The ubiquity of mobile devices has led to a rising demand for location-based services and applications. A major part of these services is based on the location-detection capabilities of the mobile devices. Utilization of location data reported by the devices is associated with a certain amount of uncertainty due to the device's mobility. In this paper, we examine an environment, which consists of mobile objects with no location-detection capabilities, and location-aware mobile sensors randomly scattered, that can sense the presence of mobile devices. These sensors can detect the identities of mobile objects that come within their sensing ranges but cannot infer their exact locations. The sensor readings are periodically reported to a database server. This system supports processing of mobile location-dependent range queries over mobile objects. The answer set of each query carries a certain degree of uncertainty due to the approximate nature of the reported object location data. We exploit scenarios of sensor range overlap to reduce the uncertainty inherent in the query result. Our work is validated through an extensive simulation study that provides assessment of the query results accuracy. © 2009 IEEE.

Publication Date

12-3-2009

Publication Title

Proceedings - 12th IEEE International Conference on Computational Science and Engineering, CSE 2009

Volume

2

Number of Pages

452-457

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/CSE.2009.476

Socpus ID

70749110508 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/70749110508

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