An improved node localization algorithm based on DV-Hop for wireless sensor networks
2011
Sensor node localization is the basis for the entire wireless sensor
networks. Because of restricted energy of the sensor nodes, the location
error, costs of communication and computation should be considered in
localization algorithms. DV-Hop localization algorithm is a typical
positioning algorithm that has nothing to do with distance. In the isotropic
dense network, DV-Hop can achieve position more precisely, but in the random
distribution network, the node location error is great. This paper summed up
the main causes of error based on the analysis on the process of the DV-Hop
algorithm, aimed at the impact to the location error which is brought by the
anchor nodes of different position and different quantity, a novel
localization algorithm called NDVHop_Bon (New DV-Hop based on optimal
nodes) was put forward based on optimal nodes, and it was simulated on
Matlab. The results show that the new proposed location algorithm has a
higher accuracy on localization with a smaller communication radius in the
circumstances, and it has a wider range of applications.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
20
References
43
Citations
NaN
KQI