A Weighted Centroid Localization Algorithm Based on DBSCAN Clustering Point Density
Journal Title: 河南科技大学学报（自然科学版） - Year 2018, Vol 39, Issue 2
Abstract
The weighted centroid localization algorithm was the most commonly used localization algorithm in wireless sensor network.In order to improve its positioning accuracy, the clustering algorithm was applied to the localization in wireless sensor networks. A weighted centroid localization algorithm based on densitly-based spatial clustering of application with noise ( DBSCAN) clustering point density was proposed.The parameter was chosen according to the degree of collinearity, and the set of localization triangle was established.Then a part of triangle which had better localization effectiveness in this set was chosen to locate unknown node, and the obtained result of initial positioning was clustered by DBSCAN. After the large error location coordinate was eliminated, the number of core points in each cluster was regarded as the weight, and the weighted centroid localization algorithm was used to obtain the final location of the unknown node. The simulation results show that compared with the traditional weighted centroid localization algorithm, the average localization error of the proposed algorithm is reduced by more than 80%. The localization accuracy of wireless sensor networks is improved effectively.
Authors and Affiliations
Yi LI, Liang ZHANG, Ran ZHANG, Shen ZHANG
Keywords
Related Articles
- EP ID EP464691
- DOI -
- Views 76
- Downloads 0
Asymmetric Arylation Reaction of Pyrazolones
The enantioselective arylation reaction of pyrazolones with quinone monoimines promoted by a chiral phosphoric acid was disclosed.The effects of catalyst, reaction solvent, and temperature on asymmetric arylation reactio...
Optimization of Excavation Step Sequence of Double Side Slope Method in Super Section Tunnel
The tunnel of mark No. 3 of line No. 5 of Chongqing metro is a shallow buried flat tunnel with super section in water-rich stratum which was constructed by symmetrical excavation step sequence of double side slope method...
Combustion Optimization of a High Speed High Power Marine Diesel Engine
For the problem of excessive smoke and high fuel consumption in the marine high-speed high-power diesel engine, the optimization was conducted based on bench test and combustion simulation. Fuel injection system bench te...
Research on Network Protection Strategy Under Mixed Attack
In view of the fact that the destructiveness of hybrid attack strategy of the complex network was significantly greater than the traditional point or edge attack strategies, two kinds of network protection strategies bas...
Microstructure and Properties of Electrodeposited Coatings on Titanium Surface
WC coating and CoCr/WC coating were prepared on the surface of TA2 basis material by electro spark deposition. The morphology, surface roughness, thickness, phase composition, microhardness and relative wear resistance o...