NDLI: SAPIL: single access point based indoor localisation using Wi-Fi L-shaped antenna array

Content Provider	IET Digital Library
Author	Tian, Zengshan Lian, Yinghui Zhou, Mu Pu, Qiaolin
Abstract	Single access point (AP) based indoor localisation (SAPIL) has attracted much attention recently. Most of the existing SAPIL systems require frequency hopping, which cannot be easily achieved in commercial APs. In response to this compelling problem, the authors proposed the SAPIL using Wi-Fi L-shaped antenna array without modifying the existing Wi-Fi protocol. Specifically, the scenario in which the target is located is determined based on the maximum weight firstly. If the target is located in the line-of-sight scenario, the angle-of-arrival (AoA) corresponding to direct path is identified from the AoAs of multipath signals which are estimated using the smooth multiple signal classification algorithm. Meanwhile, the adaptive signal propagation model trained from the channel impulse response in offline phase is adopted to calculate the distance of direct path. Then the target is located by the estimated AoA and distance of direct path. Otherwise the target is located by combining its speed and heading with pedestrian dead reckoning. Finally, the experimental results demonstrate that the proposed system achieves the median AoA estimation error of 5°, median distance estimation error of 0.5 m, and median localisation error of 1.8 m.
Starting Page	119
Ending Page	131
Page Count	13
ISSN	20436386
Volume Number	9
e-ISSN	20436394
Issue Number	Issue 3, Jun (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-wss/9/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-wss.2018.5129
Journal	IET Wireless Sensor Systems
Publisher Date	2019-01-21
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Signal Propagation Model Angle-of-arrival Corresponding Antenna Array Computer Communication Direct Path Direction of Arrival Estimation Estimated AoA Existing SAPIL System Existing Wi-Fi Protocol Indoor Communication Indoor Localisation Indoor Radio Line-of-sight Scenario Median AoA Estimation Error Median Localisation Error Radio Link And Equipment Signal Classification Signal Processing And Detection Single Access Point Size 0.5 M Size 1.8 M Smooth Multiple Signal Classification Algorithm Statistics Transient Response Wi-Fi L-shaped Antenna Array Wireless LAN
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering

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