Enhanced Vehicular Localization under Non-Line-of-Sight Multipath Propagation

Sung Il Choi, Hong Ki Kim, Sang Hyun Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


This paper develops localization strategies of non-line-of-sight (NLoS) hidden vehicles using Bayesian inference techniques and study an enhanced convergence property via statistical physics based analysis methods. NLoS vehicular localization is achieved with the measurement of multi-path channel propagation information, such as angle-of-arrival (AoA), angle-of-departure (AoD) and time-of-arrival (ToA) by characterizing their geometric relationship in a probabilistic inference task. An efficient solution is derived using generalized approximate message passing (GAMP), while convergence dynamics of GAMP has been reported as a critical issue with this approach. This paper develops a novel approach called generalized message passing (GMP) that revolves the convergence problem via compensation based on Onsager terms of the interaction model. Numerical results verify that the developed algorithm stabilizes the localization performance.

Original languageEnglish
Title of host publicationICTC 2021 - 12th International Conference on ICT Convergence
Subtitle of host publicationBeyond the Pandemic Era with ICT Convergence Innovation
PublisherIEEE Computer Society
Number of pages5
ISBN (Electronic)9781665423830
Publication statusPublished - 2021
Event12th International Conference on Information and Communication Technology Convergence, ICTC 2021 - Jeju Island, Korea, Republic of
Duration: 2021 Oct 202021 Oct 22

Publication series

NameInternational Conference on ICT Convergence
ISSN (Print)2162-1233
ISSN (Electronic)2162-1241


Conference12th International Conference on Information and Communication Technology Convergence, ICTC 2021
Country/TerritoryKorea, Republic of
CityJeju Island

Bibliographical note

Funding Information:
ACKNOWLEDGEMENT This work was supported by Institute of Information & communications Technology Planning & Evaluation (IITP) grant funded by the Korea government (MSIT). (No. 2021-0-00467, Intelligent 6G Wireless Access System, and No. 2016-0-00208, High Accurate Positioning Enabled MIMO Transmission and Network Technologies for Next 5G-V2X (vehicle-to-everything) Services.)

Publisher Copyright:
© 2021 IEEE.

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications


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