“…According to the classification of the cost, there exist two major types of restoration strategies [ 1 ]. One utilizes the least number of relay devices (i.e., RNs and MDCs) to federate disconnected components [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ], while the other one pursues the minimum energy consumption influenced by realistic terrains [ 19 , 20 , 21 , 22 , 23 ].…”