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학술대회 WiFi AP Position Estimation using Contribution from Heterogeneous Mobile Devices
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조영수, 지명인, 이양구, 박상준
Position, Location and Navigation Symposium (PLANS) 2012, pp.562-567
12PC1200, 5m 정밀도의 증강현실 서비스 지원 LBS 플랫폼 개발, 박상준
We analyze a statistical characteristics of WiFi RSSI difference from heterogeneous devices and propose its normal distributed model for cancelling the effect of the diversity of devices on WiFi AP's RSSI measurements. To evaluate the accuracy enhancement of WiFi AP position through WiFi RSSI difference correction, four devices with different WiFi chipsets are used to collect measurements in a small-scale testbed. As a result, the correction can normalize WiFi RSSI measurements from heterogeneous devices into WiFi RSSI measurements from a reference device so that the quick and accurate survey is achievable by using multiple devices in wide indoor area. Furthermore, user generated contribution, which uses heterogeneous devices, can be easily applied to the WiFi AP position estimation by using this correction. © 2012 IEEE.
KSP 제안 키워드
Mobile devices, Position Estimation, RSSI difference, Reference device, Small-scale, Statistical characteristics, WiFi RSSI, accuracy enhancement, distributed model, heterogeneous devices, multiple devices