Energy-efficient localization via personal mobility profiling

Ionut Constandache, Shravan Gaonkar, Matt Sayler, Romit Roy Choudhury, Landon Cox

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

Abstract

Location based services are on the rise, many of which assume GPS based localization. Unfortunately, GPS incurs an unacceptable energy cost that can reduce the phone's battery life to less than ten hours. Alternate localization technology, based on WiFi or GSM, improve battery life at the expense of localization accuracy. This paper quantifies this important tradeoff that underlies a wide range of emerging applications. To address this tradeoff, we show that humans can be profiled based on their mobility patterns, and such profiles can be effective for location prediction. Prediction reduces the energy consumption due to continuous localization. Driven by measurements from Nokia N95 phones, we develop an energy-efficient localization framework called EnLoc. Evaluation on real user traces demonstrates the possibility of achieving good localization accuracy for a realistic energy budget.

Original languageEnglish (US)
Title of host publicationMobile Computing, Applications, and Services - First International ICST Conference, MobiCASE 2009, Revised Selected Papers
Pages203-222
Number of pages20
DOIs
StatePublished - Dec 1 2010
Externally publishedYes
Event1st International ICST Conference on Mobile Computing, Applications, and Services, MobiCASE 2009, Held in Conjunction with the 1st Workshop on Innovative Mobile User Interactivity, WIMUI - San Diego, CA, United States
Duration: Oct 26 2009Oct 29 2009

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
Volume35 LNICST
ISSN (Print)1867-8211

Other

Other1st International ICST Conference on Mobile Computing, Applications, and Services, MobiCASE 2009, Held in Conjunction with the 1st Workshop on Innovative Mobile User Interactivity, WIMUI
Country/TerritoryUnited States
CitySan Diego, CA
Period10/26/0910/29/09

ASJC Scopus subject areas

  • Computer Networks and Communications

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