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2003
ACM

Range-free localization schemes for large scale sensor networks

10 years 6 months ago
Range-free localization schemes for large scale sensor networks
Wireless Sensor Networks have been proposed for a multitude of location-dependent applications. For such systems, the cost and limitations of the hardware on sensing nodes prevent the use of range-based localization schemes that depend on absolute pointto-point distance estimates. Because coarse accuracy is sufficient for most sensor network applications, solutions in range-free localization are being pursued as a cost-effective alternative to more expensive range-based approaches. In this paper, we present APIT, a novel localization algorithm that is range-free. We show that our APIT scheme performs best when an irregular radio pattern and random node placement are considered, and low communication overhead is desired. We compare our work via extensive simulation, with three state-of-the-art range-free localization schemes to identify the preferable system configurations of each. In addition, we study the effect of location error on routing and tracking performance. We show that rout...
Tian He, Chengdu Huang, Brian M. Blum, John A. Sta
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where MOBICOM
Authors Tian He, Chengdu Huang, Brian M. Blum, John A. Stankovic, Tarek F. Abdelzaher
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