Evaluation of Distance Error with Bluetooth Low Energy Transmission Model for Indoor Positioning

Authors

  • Pichaya Supanakoon Department of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Thailand
  • Sathaporn Promwong Department of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Thailand

DOI:

https://doi.org/10.13052/jmm1550-4646.17411

Keywords:

Distance error, indoor positioning, Bluetooth low energy (BLE) beacon, location-based service (LBS), linear regression model (LRM).

Abstract

Currently, an indoor positioning is a challenge application for location-based services (LBS) and proximity-based services (PBS). However, the indoor channel has dense multipath fading, causing more distance error than outdoor positioning. In this paper, the distance error analysis model is proposed for indoor positioning. The indoor channel is modeled as the sum of path loss model and multipath fading model. The path loss model is a linear regression model (LRM) based on Friis’ transmission formula, used for estimating the distance from received signal strength (RSS). The multipath fading is a Gaussian statistical model with zero mean, used for characterizing the multipath fading effect. The normalized distance error is evaluated and defined. The indoor channel with Bluetooth low energy (BLE) beacons is measured and compared with the proposed model. From the results, the normalized distance error obtained from the proposed model corresponds very well to measurement. This proposed model can be used as a tool for designing an indoor positioning system to obtain the specific distance error.

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Author Biographies

Pichaya Supanakoon, Department of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Thailand

Pichaya Supanakoon received the B.Eng. degree in telecommunications engineering and the M.Eng. and D.Eng. degrees in electrical engineering from King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand, in 1998, 2000, and 2012, respectively.

Since 1999, he has been with the Department of Information Engineering. Currently, he has joined the Department of Telecommunications Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang. Since 2004, he has been an Assistance Professor with King Mongkut’s Institute of Technology Ladkrabang. His research interests are in ultra wideband (UWB) communications, electromagnetic field computation, and radio wave propagation and positioning.

Sathaporn Promwong, Department of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Thailand

Sathapron Promwong received the B.Ind.Tech. degree in electronic technology and the M.Eng. degree in electrical engineering from King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand, and the Ph.D. degree in communications and integrated systems from Tokyo Institute of Technology, Tokyo, Japan, in 1994, 1999, and 2009, respectively.

Since 1995, he has been with the Department of Information Engineering, and now he has joined the Department of Telecommunications Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang. Since 2018, he has been an Assistance Professor with King Mongkut’s Institute of Technology Ladkrabang. His research interests are ultra wideband (UWB) system, antenna, radio wave propagation and positioning.

Dr. Promwong is a Member of IEEE, IEICE, and ECTI, and Chapter Chair of IEEE BTS Thailand chapter.

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Published

2021-06-21

Issue

Section

Smart Innovative Technology for Future Industry and Multimedia Applications