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IEEE 802.15.4 is one of the most important protocols for wireless sensor networks. To improve the performance of this protocol in consideration of the trade-off between power consumption and end-to-end delay, duty cycle adaptation algorithms are effective solutions. In this paper, we propose an individual beacon order adaptation (IBOA) algorithm for IEEE 802.15.4 networks, which can individually adapt the beacon interval and duty cycle of each node at the same time to the nodeÂ¿s individual performance requirements. The simulations show that the IBOA algorithm makes IEEE 802.15.4 focus on the low level of power consumption under light traffic loads, while try to ensure the performance of end-to-end delay rather than power consumption under heavy traffic loads. In addition, the throughput is also guaranteed.