12th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services

Research Article

Asynchronous Distance Measurement for Smartphone-Based Localization Exploiting Chirp Signals

  • @INPROCEEDINGS{10.4108/eai.22-7-2015.2260250,
        author={Hong Jae Lee and Homin Park and Taejoon Park},
        title={Asynchronous Distance Measurement for Smartphone-Based Localization Exploiting Chirp Signals},
        proceedings={12th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services},
        publisher={ACM},
        proceedings_a={MOBIQUITOUS},
        year={2015},
        month={8},
        keywords={distance measurement chirp signal smartphone san},
        doi={10.4108/eai.22-7-2015.2260250}
    }
    
  • Hong Jae Lee
    Homin Park
    Taejoon Park
    Year: 2015
    Asynchronous Distance Measurement for Smartphone-Based Localization Exploiting Chirp Signals
    MOBIQUITOUS
    ICST
    DOI: 10.4108/eai.22-7-2015.2260250
Hong Jae Lee1, Homin Park1, Taejoon Park2,*
  • 1: Daegu Gyeongbuk Institute of Science and Technology
  • 2: Hanyang University
*Contact email: taejoon@hanyang.ac.kr

Abstract

In this paper, we present an asynchronous, accurate, and real-time distance measurement method using chirp signals, which is capable of accurately locating and tracking, thus forming an ad-hoc network among smartphones in an indoor (e.g., smart meeting room) environment. We then implement our proposed method on top of commercial off-the-shelf smartphones without modifying their hardware or OS kernel. Our experimental results demonstrate that it takes <1 second to conduct network-wide distance measurements and the measurement error is <10cm in at least 87% of the experiments.