Improved MDS-based algorithm for nodes localization in wireless sensor networks
Date Issued
2013-07-01
Author(s)
Risteska Stojkoska, Biljana
Abstract
With the recent development of technology,
wireless sensor networks (WSN) are becoming an important part
of many applications. Knowing the exact location of each sensor
in the network is very important issue. Therefore, the
localization problem is a growing field of interest. Adding GPS
receivers to each sensor node is costly solution and inapplicable
on nodes with limited resources. Additionally, it is not suitable
for indoor environments.
In this paper, we propose an algorithm for nodes localization
in WNS based on multidimensional scaling (MDS) technique.
Our approach improves MDS by distance matrix refinement.
Using extensive simulations we investigated in details our
approach regarding different network topologies, various
network parameters and performance issues. The results from
simulations show that our improved MDS (IMDS) algorithm
outperforms well known MDS-MAP algorithm [1] in terms of
accuracy.
wireless sensor networks (WSN) are becoming an important part
of many applications. Knowing the exact location of each sensor
in the network is very important issue. Therefore, the
localization problem is a growing field of interest. Adding GPS
receivers to each sensor node is costly solution and inapplicable
on nodes with limited resources. Additionally, it is not suitable
for indoor environments.
In this paper, we propose an algorithm for nodes localization
in WNS based on multidimensional scaling (MDS) technique.
Our approach improves MDS by distance matrix refinement.
Using extensive simulations we investigated in details our
approach regarding different network topologies, various
network parameters and performance issues. The results from
simulations show that our improved MDS (IMDS) algorithm
outperforms well known MDS-MAP algorithm [1] in terms of
accuracy.
Subjects
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