For the restriction of applications which is only applied for two-dimensional space in wireless sensor network by APIT algorithm,3D-GPIT algorithm is proposed based on improvements of PIT theorem,which can be used in three-dimensional space and picking out the subsets of range with estimated location of unknown nodes by tetrahedron test,at the same time using 3D mesh method to optimize calculation.Simulating location is carried on by changing successive parameters in the area of 100 m×100 m×100 m space.Resu...
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