Anchor-cum-Relay Nodes for Localizing a Mobile Source and Relaying Source Signals

Author

Perez-Ramirez, Javier ; Borah, Deva K.

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

fYear

2013

fDate

2-5 Sept. 2013

Firstpage

1

Lastpage

6

Abstract

The problem of selecting anchor-cum-relay (ACR) nodes for the dual purpose of tracking a mobile source as well as serving as relays for the source signal is considered. The proposed approach uses particle filters (PFs) with node selection based on the received signal-to-noise ratio (SNR) along with a localization constraint derived through the Fisher information matrix (FIM). The detail steps of implementation are given. A posterior Cramer-Rao lower bound approach is also explored to exploit information from previous node selections. Numerical results demonstrate that the proposed FIM-SNR approach achieves more than 16 dB in average source localization mean-squared error (MSE) over nearest node (NN) selection, while performing very close to FIM-based optimal localization. At the same time, the proposed FIM-SNR provides a received SNR nearly identical to NN selection but outperforming FIM-based selection´s SNR by more than 5.5 dB.

Keywords

mean square error methods; mobile communication; particle filtering (numerical methods); FIM-SNR approach; Fisher information matrix; anchor-cum-relay nodes; localization constraint; mobile source localization; mobile source tracking; nearest node selection; particle filters; posterior Cramer-Rao lower bound approach; signal-to-noise ratio; source localization mean squared error; Acceleration; Estimation; Joints; Mobile communication; Position measurement; Relays; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th

Conference_Location

Las Vegas, NV

ISSN

1090-3038

Type

conf

DOI

10.1109/VTCFall.2013.6692107

Filename

6692107