Self-Localization of Asynchronous Wireless Nodes With Parameter Uncertainties
2013 (English)In: IEEE Signal Processing Letters, ISSN 1070-9908, E-ISSN 1558-2361, Vol. 20, no 6, 551-554 p.Article in journal (Refereed) Published
We investigate a wireless network localization scenario in which the need for synchronized nodes is avoided. It consists of a set of fixed anchor nodes transmitting according to a given sequence and a self-localizing receiver node. The setup can accommodate additional nodes with unknown positions participating in the sequence. We propose a localization method which is robust with respect to uncertainty of the anchor positions and other system parameters. Further, we investigate the Cramer-Rao bound for the considered problem and show through numerical simulations that the proposed method attains the bound.
Place, publisher, year, edition, pages
2013. Vol. 20, no 6, 551-554 p.
Anchor uncertainty, Cramer-Rao bound, maximum a posteriori estimators, wireless sensor networks
IdentifiersURN: urn:nbn:se:kth:diva-122498DOI: 10.1109/LSP.2013.2255592ISI: 000317925800002ScopusID: 2-s2.0-84876209727OAI: oai:DiVA.org:kth-122498DiVA: diva2:622766
QC 201305232013-05-232013-05-232013-05-23Bibliographically approved