Working Process: e Stage②上支 d 4-D RSS Interpolation algorithm >Gi: a cube with coordinate(,M,i∈1,Ⅺ,j∈,Y,h∈1, C全{(,1)∈[1,X],j∈[1,Y],h∈1,2]} >C{(i,b)=1,3,5,…,x;j=1,3,5,…,Y;h=1,3,5,…,z} u We collect training data for 1 of each 8 cubes O={031(,,b)∈C} where Oiih- oinla=1, 2,,N) >s=1M and m is the number of aps n is the number of training data at each cubeWorking Process: Off-line Stage ❑ 4-D RSS Interpolation Algorithm ➢ : a cube with coordinate . ➢ ➢ ➢ ❑ We collect training data for 1 of each 8 cubes: ➢ s = 1,…,M and M is the number of APs; N is the number of training data at each cube. 14