LoRa network protocol design based on CSMA/CA with asynchronous downlink mode

Hui Zhang; Heng Liu; Zhihan Tao; Yang Zhang

doi:10.1117/12.3033369

29 July 2024 LoRa network protocol design based on CSMA/CA with asynchronous downlink mode

Hui Zhang, Heng Liu, Zhihan Tao, Yang Zhang

Proceedings Volume 13214, Fourth International Conference on Digital Signal and Computer Communications (DSCC 2024); 132140W (2024) https://doi.org/10.1117/12.3033369
Event: Fourth International Conference on Digital Signal and Computer Communications (DSCC 2024), 2024, Guangzhou, China

Abstract

In this paper, a LoRa network protocol based on CSMA/CA access mechanism and asynchronous downlink mode is proposed for the communication problem in the LoRa network according to the star network model. The protocol aims to improve LoRa network performance, reduce the risk of node conflicts, and achieve stable and efficient data transmission. In this paper, the network parameters of the protocol are determined, and the protocol mechanism, backoff algorithm, and asynchronous downlink mode are designed. The performance improvement of the improved protocol in terms of normalized throughput, communication collision rate, average communication delay is verified through simulation analysis. In the case of 150 nodes competing for the channel at the same time, this protocol has a better performance compared to the original protocol, which can improve the throughput, reduce the communication collision by 11% and reduce the delay by 83ms.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hui Zhang, Heng Liu, Zhihan Tao, and Yang Zhang "LoRa network protocol design based on CSMA/CA with asynchronous downlink mode", Proc. SPIE 13214, Fourth International Conference on Digital Signal and Computer Communications (DSCC 2024), 132140W (29 July 2024); https://doi.org/10.1117/12.3033369

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