Unequal Weighting for Precise Positioning in GPS-less Sensor Networks

Conference: KiVS 2007 - Kommunikation in Verteilten Systemen - 15. ITG/GI-Fachtagung
02/26/2007 - 03/02/2007 at Bern, Schweiz

Proceedings: KiVS 2007

Pages: 12Language: englishTyp: PDF

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Haenselmann, Thomas; Busse, Marcel; King, Thomas; Effelsberg, Wolfgang (Computer Science IV, University of Mannheim, A5(6), 68159 Mannheim, Germany)

The world coordinates of an unlocalized node in a wireless sensor network can be determined GPS-less with the help of established neighbors, that already have obtained their coordinates by means of triangulation. It is state of the art to improve a position estimate by taking an average of several estimates, if available. In this paper, we will present an analytical approach to decrease the expected error of the average calculation, only by using information which is already available.