Title
An Energy-Accuracy Tradeoff Scheme Based On Optimal Communication Policy For Hetnet-Based Indoor Localization Framework
Abstract
Energy-efficiency and location accuracy are two important performance metrics for indoor localization systems. However, typical indoor localization schemes based on WLAN cut gravely down smart device's usage life cycle due to large energy consumption of scanning wireless access points. In this paper, for the purpose of decreasing the amount of energy consumption while guaranteeing the location accuracy, a novel indoor localization framework based on heterogeneous network (HetNet) by fusing WLAN and WPAN under group-based mobility mode is proposed, whose localization method is relied on the fusion of fingerprint matching and trilateration. Moreover, we develop a novel energy-accuracy tradeoff scheme by electing an optimal communication policy through solving a Constrained Markov Decision Process optimization problem in the proposed HetNet-based indoor localization framework. Simulation results indicate that the proposed policy is distinctly effective to maintain the tradeoff between the energy consumption and localization accuracy of smart device by improving the location accuracy with 12.1% and decreasing the amount of energy consumption with 15.4% with respect to uniform communication policy under the same localization situation.
Year
Venue
Field
2015
2015 IEEE/CIC INTERNATIONAL CONFERENCE ON COMMUNICATIONS IN CHINA (ICCC)
Smart device,Wireless,Computer science,Computer network,Markov decision process,Real-time computing,Fingerprint,Heterogeneous network,Energy consumption,Optimization problem,Trilateration
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
10
4
Name
Order
Citations
PageRank
Jun Xia164.15
Chaojie Xu200.34
Hui Yu320018.98
Zhongling Liu400.34