Performance Evaluation of Non-GPS Based Localization Techniques under Shadowing Effects

Ngoc Mai Nguyen, Le Chung Tran, Farzad Safaei, Son Lam Phung, Peter Vial, Nam Huynh, Anne Cox, Theresa Harada, Johan Barthelemy

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Abstract

Non-GPS localization has gained much interest from researchers and industries recently because GPS might fail to meet the accuracy requirements in shadowing environments. The two most common range-based non-GPS localization methods, namely Received Signal Strength Indicator (RSSI) and Angle-of-Arrival (AOA), have been intensively mentioned in the literature over the last decade. However, an in-depth analysis of the weighted combination methods of AOA and RSSI in shadowing environments is still missing in the state-of-the-art. This paper proposes several weighted combinations of the two RSSI and AOA components in the form of pAOA + qRSSI, devises the mathematical model for analyzing shadowing effects, and evaluates these weighted combination localization methods from both accuracy and precision perspectives. Our simulations show that increasing the number of anchors does not necessarily improve the precision and accuracy, that the AOA component is less susceptible to shadowing than the RSSI one, and that increasing the weight of the AOA component and reducing that of the RSSI component help improve the accuracy and precision at high Signal-to-Noise Ratios (SNRs). This observation suggests that some power control algorithm could be used to increase automatically the transmitted power when the channel experiences large shadowing to maintain a high SNR, thus guaranteeing both accuracy and precision of the weighted combination localization techniques.

Original languageEnglish
Article number2633
JournalSensors (Basel, Switzerland)
Volume19
Issue number11
DOIs
Publication statusPublished - 1 Jun 2019

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arrivals
Signal to noise ratio
evaluation
Anchors
Power control
Global positioning system
Signal-To-Noise Ratio
Mathematical models
signal to noise ratios
Industry
mathematical models
Theoretical Models
industries
Research Personnel
Weights and Measures
requirements
simulation

Keywords

  • AOA
  • Non-GPS localization
  • RSSI
  • shadowing effects
  • VANET

Cite this

Nguyen, Ngoc Mai ; Tran, Le Chung ; Safaei, Farzad ; Phung, Son Lam ; Vial, Peter ; Huynh, Nam ; Cox, Anne ; Harada, Theresa ; Barthelemy, Johan. / Performance Evaluation of Non-GPS Based Localization Techniques under Shadowing Effects. In: Sensors (Basel, Switzerland). 2019 ; Vol. 19, No. 11.
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Nguyen, NM, Tran, LC, Safaei, F, Phung, SL, Vial, P, Huynh, N, Cox, A, Harada, T & Barthelemy, J 2019, 'Performance Evaluation of Non-GPS Based Localization Techniques under Shadowing Effects', Sensors (Basel, Switzerland), vol. 19, no. 11, 2633. https://doi.org/10.3390/s19112633

Performance Evaluation of Non-GPS Based Localization Techniques under Shadowing Effects. / Nguyen, Ngoc Mai; Tran, Le Chung; Safaei, Farzad; Phung, Son Lam; Vial, Peter; Huynh, Nam; Cox, Anne; Harada, Theresa; Barthelemy, Johan.

In: Sensors (Basel, Switzerland), Vol. 19, No. 11, 2633, 01.06.2019.

Research output: Contribution to journalArticle

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AU - Tran, Le Chung

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AU - Huynh, Nam

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AU - Harada, Theresa

AU - Barthelemy, Johan

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