Electrically small shorted patch antenna array with switchable radiation patterns for indoor messaging system

Matsumoto, Hisanori; Fuji, Kenjiro; Tanikawara, Makoto; Kohiyama, Tomohisa

doi:10.1109/ropaces.2016.7465435

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…However, because of using unlicensed weak radio signals, data reception may be unstable, while a single transmitter cannot cover a wide area; these and other problems have prevented spread of this technology. Numerous reports presented until now at domestic and foreign conferences pertain to studies on combined use of IMES with other technologies, studies on IMES issues other than positioning, overviews, etc. In addition, regarding electric field strength measurement in wireless LAN, there are only few experimental reports on 2 GHz waves onboard of a ship …”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation on IMES and the other positioning systems for navigation performance in a ship

Namie

Kubo

Сузукі

et al. 2019

Elect Comm in Japan

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In this study, an indoor messaging system (IMES) was used to determine walking positions in an indoor environment at rates of 50 and 250 bps in a ship, transmitting powers of −65 and −85 dBm. Furthermore, Bluetooth low energy beacon and wireless LAN (Wi‐Fi) access point were also used. The results confirm that the best tracking of pedestrians in an indoor environment is achieved using IMES with a transmitter in a ship. The results of these experiments will be useful for new IMES/Global Navigation Satellite System chip set designs.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative evaluation on IMES and the other positioning systems for navigation performance in a ship

Namie

Kubo

Сузукі

et al. 2019

Elect Comm in Japan

View full text Add to dashboard Cite

show abstract

“…However, because of using unlicensed weak radio signals, data reception may be unstable, while a single transmitter cannot cover a wide area; these and other problems have prevented spread of this technology. Numerous reports presented until now at domestic and foreign conferences pertain to studies on combined use of IMES with other technologies, 4-12 studies on IMES issues other than positioning, 8,[13][14][15][16][17][18][19] overviews, 20,21 etc. In addition, regarding electric field strength measurement in wireless LAN, there are only few experimental reports on 2 GHz waves onboard of a ship.…”

Section: Introductionmentioning

confidence: 99%

Comparative Evaluation on IMES and the Other Positioning Systems for Navigation Performance in a Ship

et al. 2019

View full text Add to dashboard Cite

In this study, an indoor messaging system (IMES) was used to determine walking positions in an indoor environment at rates of 50 and 250 bps in a ship, transmitting powers of −65 and −85 dBm. Furthermore, Bluetooth low energy beacon and wireless LAN (Wi-Fi) access point were also used. The results confirm that the best tracking of pedestrians in an indoor environment is achieved using IMES with a transmitter in a ship. The results of these experiments will be useful for new IMES/Global Navigation Satellite System chip set designs. K E Y W O R D SGPS, IMES, indoor/outdoor seamless positioning, pedestrian navigation 36

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Short Studies on Indoor/Outdoor Seamless Positioning by Using Indoor MEssaging System (IMES) for Pedestrian Navigation

et al. 2018

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Electrically small shorted patch antenna array with switchable radiation patterns for indoor messaging system

Cited by 3 publications

References 3 publications

Comparative evaluation on IMES and the other positioning systems for navigation performance in a ship

Comparative evaluation on IMES and the other positioning systems for navigation performance in a ship

Comparative Evaluation on IMES and the Other Positioning Systems for Navigation Performance in a Ship

Short Studies on Indoor/Outdoor Seamless Positioning by Using Indoor MEssaging System (IMES) for Pedestrian Navigation

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