Fig. 4From: Hybrid energy-efficient APTEEN protocol based on ant colony algorithm in wireless sensor networkAMAPTEEN network model. The AMAPTEEN network model consists of CM, CH, IM_node, and sink node four parts. CM sends the sensed data to CH, and CH collects and fuses data and sends the fusion of data to IM_node. IM_node forwards the data to a distant sink nodeBack to article page