Fig. 4
From: Energy-efficient renewable scheme for rechargeable sensor networks
The optimal traveling path of MCV during the 32th cycle. During the 32th cycle, the visiting set of MCV is F32=S1∪S2∪…∪S6. Different from other schemes in previous researches, the MCV only needs to charge a portion of nodes during the 32th cycle. Based on previous analysis, the optimal traveling path is the shortest Hamiltonian cycle which connects all nodes in F32 and the service station