Information Coupling in Cooperative Localization

Author

Mazuelas, Santiago ; Shen, Yuan ; Win, Moe Z.

Author_Institution

Lab. for Inf. & Decision Syst. (LIDS), Massachusetts Inst. of Technol., Cambridge, MA, USA

Volume

15

Issue

7

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

737

Lastpage

739

Abstract

Cooperative network localization with high-accuracy and environment-independent reliability will enable a myriad of important applications. However, distributed implementations of cooperative algorithms currently do not account for the correlation of inferred nodes´ positions. This letter investigates such correlation in cooperative localization in terms of Fisher information, leading to the concept of information coupling. To characterize its behavior, we focus on the simplest non-trivial case and derive the expressions for information coupling.

Keywords

cooperative communication; telecommunication network reliability; Fisher information; cooperative algorithms; cooperative localization; cooperative network localization; distributed implementations; environment-independent reliability; inferred nodes positions; information coupling; nontrivial case; Correlation; Couplings; Distance measurement; Inference algorithms; Uncertainty; Wideband; Wireless sensor networks; Cooperative localization; information coupling; information inequality; ranging information;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.060111.110402

Filename

5871406