Enhanced Path Detection Based on Interference Cancellation for Range Estimation of Communication-Based Positioning System in Indoor Environment

A method for improving the ranging performance for localization using orthogonal frequency- multiplexing-based communication system is proposed. The most difficult aspect of performing localization using the time-of-arrival information of a communication system is distinguishing indirect paths and n...

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Bibliographic Details
Published inIEEE access Vol. 7; pp. 1658 - 1667
Main Authors Lee, Jung-Yong, Choi, Ji-Won, Lee, Jae-Hyun, Yoon, Jung-Min, Kim, Seong-Cheol
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Communications systems
Direct path
Estimation
Indoor environments
Interference
Interference cancellation
localization
Multiplexing
orthogonal frequency-division multiplexing
Quadrature amplitude modulation
range estimation
Signal to noise ratio
super resolution
time of arrival
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Summary:A method for improving the ranging performance for localization using orthogonal frequency- multiplexing-based communication system is proposed. The most difficult aspect of performing localization using the time-of-arrival information of a communication system is distinguishing indirect paths and noise from the direct path (DP), when the DP is blocked by obstacles. In this paper, the combination of interference cancellation and an enhanced path detector is proposed to remove interference from nearby paths and detect low-power DP. The proposed method is verified in 802.11ac environments, and it shows an improved performance compared with conventional methods.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2018.2886760