Competition-free Period Interleaved Time-Slot Allocation Strategy for Data Transmission of IoT System

The rapid development of wireless communication has accelerated the arrival of the Internet of Things (IoT) era. This article conducts in-depth research on heterogeneous data transmission in large-scale ZigBee presented IoT networks. We start from three aspects of data type classification of the IoT system, then design a time slot request framework and a time slot allocation algorithm involving the terminal and coordinator. We intend to improve the peak-shift transmission during the non-competition period to adapt to more practical IoT application scenarios. The proposed solution can ensure the reliable data transmission of the entire network, then the data transmission delay can be reduced to satisfy the heterogeneous transmission requirements. In the end, the proposed solution will be validated via simulation, and the numerical data demonstrates that our proposed solution outperforms.