Where is PELE? Pervasive localization using wearable and handheld devices

Luis Henrik John, Chayan Sarkar, R. Venkatesha Prasad

Research output: Contribution to journalArticleScientificpeer-review


Smartphones or in general handhelds commonly used for indoor localization purposes are not a viable option in places where people do not carry them all the time - for example, home and office. Alternatively, wearable devices can partially solve this problem but have many limitations with respect to power supply, processing capability, and availability of sensors. These issues prevent the adoption of many common handheld localization solutions. In this work, we present PErvasive Localization Engine (PELE), a distributed localization system that uses wearable and handheld jointly to address the above drawbacks. Using only magnetometer, accelerometer, and Bluetooth radio, localization is performed by means of a particle filter. In addition, a dynamic handoff mechanism is presented, which uses the wearable only when it is necessary, thus reducing energy consumption on the wearable without affecting the desired localization accuracy. Evaluating the system with ten participants, we achieve a localization accuracy of 90.31 % in an indoor environment spanning about 320 m2.
Original languageEnglish
Pages (from-to)8-15
Number of pages8
JournalSIGBED Review
Issue number2
Publication statusPublished - 2018
EventAIoTAS 2017: 1st Workshop on Advances in ioT Architecture and Systems - Toronto, Canada
Duration: 25 Jun 201725 Jun 2017
Conference number: 1


  • Indoor localization
  • wearable
  • joint localization
  • handoff
  • pervasive


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