Improved DV-HOP Localization Algorithm Based on Grey Wolf Optimization
Siqi Yang,
No information about this author
Xiao Hua Wang
No information about this author
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 16, 2025
Abstract
DV-HOP
is
a
widely
used
localization
algorithm,
commonly
applied
in
areas
such
as
node
Wireless
Sensor
Networks
(WSN),
deployment
of
Internet
Things
(IoT)
devices,
and
navigation
for
mobile
robots.
However,
the
algorithm
faces
challenges
practical
applications,
including
cumulative
hop
count
errors
between
nodes,
inaccuracies
estimated
distances,
computational
bias
introduced
by
least
squares
method
when
dealing
with
nonlinear
problems.
To
address
these
issues,
this
paper
proposes
an
improved
based
on
Grey
Wolf
Optimization
(GWO).
By
incorporating
dual
communication
radii,
weighted
distance
correction,
(IGWO),
proposed
approach
enhances
accuracy
nodes
WSN.
First,
radii
strategy
utilized
to
refine
improving
estimations.
Second,
adjustment
factor
further
correct
minimum
anchor
resulting
more
precise
average
distances.
Weighted
optimization
distances
from
unknown
achieved
using
mean
square
error
criterion.
Finally,
replaces
solving
coordinates
nodes.
Simulation
results
demonstrate
that
consistently
achieves
lower
under
various
experimental
conditions.
Compared
other
methods,
it
provides
higher
accuracy,
verifying
its
effectiveness
advantages.
Language: Английский
Soft Computing Techniques for Minimizing and Predicting Average Localization Error in Wireless Sensor Networks
Srivani Reddy,
No information about this author
A. Kamala Kumari,
No information about this author
B. Satish Kumar
No information about this author
et al.
International Journal of Computational and Experimental Science and Engineering,
Journal Year:
2025,
Volume and Issue:
11(2)
Published: March 29, 2025
Localization
methods
are
used
to
approximate
the
position
of
unknown
nodes
in
a
network.
errors
calculated
by
comparing
estimated
and
true
positions
at
each
time
step.
Finding
best
network
parameters
minimize
localization
error
during
setup
process
while
maintaining
requisite
accuracy
short
period
remains
difficult
task.
Both
anchor
strategically
placed
reduce
problems,
which
addresses
series
issue.
Soft
computing
approaches
such
as
Fuzzy
Logic
Adaptive
Neuro-Fuzzy
Inference
System
(ANFIS)
address
this
In
study,
number
simulation
area
de
facto
for
Average
Error(ALE)
training
prediction.
These
feature
values
were
obtained
from
simulations
using
modified
centroid
technique
with
Kalman
filter.
This
work
tries
adjusting
these
soft
techniques.
The
experimentation
is
carried
out
MATLAB,
demonstrating
suggested
method's
ability
improve
reliability
wireless
sensor
networks.
Language: Английский