@inproceedings{115207247c2544ffbcfdebe9a1f3e750,
title = "Localization using signal strength: To range or not to range?",
abstract = "Received Signal Strength (RSS) data collected within a wireless network can be used to obtain either range estimates or connectivity information. Both approaches lead to localization schemes that require no additional hardware. It is not clear, however, when a range-based scheme should be used in favor of a connectivity-based one. We use analysis of the Fisher information and the Cram{\'e}r-Rao Bound (CRB) to characterize the error of both approaches. We find the existence of a critical connectivity value, below which the use of RSS data for range-based localization is counter-productive. We show that an approximation of the critical connectivity value can be computed as a function of the network size and the parameters of the propagation model.",
keywords = "Approximation, Connectivity, Cram{\'e}r-rao bound, Fisher information, Localization, RSS, Ranging, Signal strength",
author = "Gianni Giorgetti and Sandeep Gupta and Gianfranco Manes",
year = "2008",
doi = "10.1145/1410012.1410033",
language = "English (US)",
isbn = "9781605581897",
series = "Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM",
pages = "91--96",
booktitle = "MobiCom'08 Co-Located Workshops - Proceedings of the 1st ACM International Workshop on Mobile Entity Localization and Tracking in GPS-less Environments, MELT'08",
note = "2008 International Conference on Mobile Computing and Networking, MobiCom'08 - 1st ACM International Workshop on Mobile Entity Localization and Tracking in GPS-less Environments, MELT'08 ; Conference date: 19-09-2008 Through 19-09-2008",
}