A Wi-Fi Positioning Method Considering Radio Attenuation of Human Body

Autor:	Nobuhiko Nishio, Shohei Harada, Kazuya Murao, Masahiro Mochizuki
Rok vydání:	2018
Předmět:	Base station Position (vector) Computer science Attenuation Acoustics Particle filter Radio wave
Zdroj:	UbiComp/ISWC Adjunct Human Activity Sensing ISBN: 9783030130008
DOI:	10.1145/3267305.3267513
Popis:	As it is generally difficult to utilize GPS positioning indoors, methods such as Wi-Fi positioning and PDR positioning are proposed. In particular, in addition to being able to estimate the absolute position, the Wi-Fi positioning has attracted attention due to the low introduction cost due to already installed Wi-Fi base stations in various facilities. In Wi-Fi positioning, position estimation is mainly performed by using radio wave intensity (RSSI). However, at the time of radio observation, the body of the user shields the radio waves, which reduces the RSSI, and there is a problem that the positioning accuracy deteriorates. Therefore, in this research, the radio wave environment map is expressed using GMM (Gaussian mixture model), and the positioning accuracy is improved by considering radio wave attenuation by the human body in the Wi-Fi positioning using the particle filter.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6d85a749fef9b83ed3c8870ac600346 https://doi.org/10.1145/3267305.3267513 Zobrazit plný text záznamu