@inproceedings{f4fa2a5fdb1c492c98ccc636835b6237,
title = "Range-Free Localization Schemes for Large Scale Sensor Networks",
abstract = "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 point-to-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 routing performance and tracking accuracy are not significantly affected by localization error when the error is less than 0.4 times the communication radio radius.",
keywords = "Localization, Location discovery, Positioning, Sensor Networks",
author = "Tian He and Chengdu Huang and Blum, {Brian M.} and Stankovic, {John A.} and Tarek Abdelzaher",
year = "2003",
doi = "10.1145/938985.938995",
language = "English (US)",
isbn = "9781581137538",
series = "Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM",
publisher = "Association for Computing Machinery (ACM)",
pages = "81--95",
booktitle = "Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM",
address = "United States",
note = "Proceedings of the Ninth Annual International Conference on Mobile Computing and Networking, MobiCom 2003 ; Conference date: 14-09-2003 Through 19-09-2003",
}