Affiliation:
1. University of California, Los Angeles, CA
2. University of Southern California/Information Sciences Institute, Marina del Rey, CA
Abstract
Embedded networked sensors promise to revolutionize the way we interact with our physical environment and require scalable, ad hoc deployable and energy-efficient node localization/positioning.This paper describes the motivation, design, implementation, and experimental evaluation (on sharply resource-constrained devices) of a
self-configuring
localization system using radio beacons. We identify beacon
density
as an important parameter in determining localization quality, which saturates at a transition density. We develop algorithms to improve localization quality by (i) automating placement of new beacons at low densities (HEAP) and (ii) rotating functionality among redundant beacons while increasing system lifetime at high densities (STROBE).
Publisher
Association for Computing Machinery (ACM)
Subject
Hardware and Architecture,Software
Cited by
80 articles.
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