title: A Network Coverage Information-Based Sensor Registry System for IoT Environments.
abstract: The Internet of Things (IoT) is expected to provide better services through the interaction of physical objects via the Internet. However, its limitations cause an interoperability problem when the sensed data are exchanged between the sensor nodes in wireless sensor networks (WSNs), which constitute the core infrastructure of the IoT. To address this problem, a Sensor Registry System (SRS) is used. By using a SRS, the information of the heterogeneous sensed data remains pure. If users move along a road, their mobile devices predict their next positions and obtain the sensed data for that position from the SRS. If the WSNs in the location in which the users move are unstable, the sensed data will be lost. Consider a situation where the user passes through dangerous areas. If the user's mobile device cannot receive information, they cannot be warned about the dangerous situation. To avoid this, two novel SRSs that use network coverage information have been proposed: one uses OpenSignal and the other uses the probabilistic distribution of the users accessing SRS. The empirical study showed that the proposed method can seamlessly provide services related to sensing data under any abnormal circumstance.
authors.affiliation: Department of Computer and Radio Communications Engineering, Korea University, Anam-dong, Seongbuk-Gu, Seoul 136-701, Korea. darkspen@korea.ac.kr.
authors.forename: Hyunjun
authors.initials: H
authors.lastname: Jung
authors.affiliation: Department of Statistics and Computer Science, Kunsan National University, Miryong-dong, Gunsan-si, Jeollabuk-do 573-701, Korea. djeong@kunsan.ac.kr.
authors.forename: Dongwon
authors.initials: D
authors.lastname: Jeong
authors.affiliation: Department of Biomedical Informatics, Ajou University School of Medicine, Woncheon-dong, Yeongtong-gu, Suwon 433-721, Korea. leha82@ajou.ac.kr.
authors.forename: Sukhoon
authors.initials: S
authors.lastname: Lee
authors.affiliation: Department of Statistics and Computer Science, Kunsan National University, Miryong-dong, Gunsan-si, Jeollabuk-do 573-701, Korea. bwon@kunsan.ac.kr.
authors.forename: Byung-Won
authors.initials: BW
authors.lastname: On
authors.affiliation: Department of Computer Science and Engineering, Korea University, Anam-dong, Seongbuk-Gu, Seoul 136-701, Korea. baikdk@korea.ac.kr.
authors.forename: Doo-Kwon
authors.initials: DK
authors.lastname: Baik
keywords: Sensor Registry System; network coverage; sensor information