Abstract: Node energy efficiency and energy consumption balance are two important aspects in wireless sensor networks (WSN), which have a direct impact on network life. In view of the fact that the underground sensor network cannot take account of both of them, an adaptive data collection method of node energy efficiency and energy consumption balance (AEBADA) was proposed on the basis of the hybrid communication mode. The ring width and the minimum communication radius of the node in the detection area are determined by comparative analysis. In selecting the relay node, not only the distance between nodes and the residual energy, but also the reliability of the link and the number of nodes adjacent to the candidate nodes are considered. Simulation shows that, compared with other similar hybrid communication scheme and some typical data collection methods, the AEBADA approach has obvious advantages in terms of node efficiency, energy consumption balance and routing reliability. It is not affected by the density and distribution of nodes and suitable for underground communication environment.

Key words: data collection, energy efficiency, energy consumption balance, hybrid transmission scheme, underground sensor network