USENIX 2002 Annual Conference - Technical Program Abstract
Robust Positioning Algorithms for Distributed Ad-Hoc Wireless Sensor Networks
Berkeley Wireless Research Center;
Koen Langendoen, Faculty of Information Technology and Systems
A distributed algorithm for determining the positions of nodes in
an ad-hoc, wireless sensor network is explained in detail. Details
regarding the implementation of such an algorithm are also discussed.
Experimentation is performed on networks containing 400 nodes randomly
placed within a square area, and resulting error magnitudes are
represented as percentages of each node's radio range. In scenarios
with 5% errors in distance measurements, 5% anchor node population
(nodes with known locations), and average connectivity levels between
neighbors of 7 nodes, the algorithm is shown to have errors less than
33% on average. It is also shown that, given an average connectivity
of at least 12 nodes and 10% anchors, the algorithm performs well with
up to 40% errors in distance measurements.
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