Energy Efficient Mobile Positioning System Using Adaptive Particle Filter

Yoojin KIM  Yongwoon SONG  Hyukjun LEE  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E101-A   No.6   pp.997-999
Publication Date: 2018/06/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E101.A.997
Type of Manuscript: LETTER
Category: Measurement Technology
Keyword: 
dynamic voltage frequency scaling,  particle filter,  mobile positioning,  

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Summary: 
An accurate but energy-efficient estimation of a position is important as the number of mobile computing systems grow rapidly. A challenge is to develop a highly accurate but energy efficient estimation method. A particle filter is a key algorithm to estimate and track the position of an object which exhibits non-linear movement behavior. However, it requires high usage of computation resources and energy. In this paper, we propose a scheme which can dynamically adjust the number of particles according to the accuracy of the reference signal for positioning and reduce the energy consumption by 37% on Cortex A7.