The site layers in the base station triangulation network can also be calculated using the shortest path in graph theory.
The base station triangulation network is an undirected connected graph G = (V, E) , where V denotes the set of nodes in G and E denotes the set of edges.
The site layer between any two base station nodes u and v is the shortest path between the two nodes.
The adjacency matrix and graph theory method to determine the connectivity can then be used to compute the site layers[9].