Abstract:In a low-load, low-power wireless sensor network, energy consumption of the node state switching should not be neglected because energy for data transmission is less. Focusing on this problem, a node scheduling algorithm combine with multi-channel technology and time division multiple access (TDMA) technology is proposed. The algorithm designs a consecutive slots allocation strategy based on receiver to reduce the node status switching times, proposes a channel allocation and slot adjustment mechanism under the constraints that the available wireless channels are limited, and implements slots reusing and minimizes the limited channels constraints effects on optimizing times of node status switching. The simulation experiments results show the algorithm can effectively improve the node energy efficiency when the number of available wireless channel is between 3 and 5, while the algorithm can achieve the optimized data collection time when the number of available wireless channel is greater than 3.