橄榄园中方向相关路径损耗建模：面向精准农业
Direction-Dependent Path Loss Modeling in Olive Orchards for Precision Agriculture
Mohammad Rowhani Sistani, Katarzyna Kosek-Szott, Pierluigi Gallo
AI 速读 基于摘要
作者提出一种考虑果园行结构布局与设备相对位置的方向相关传播模型，并用868 MHz LoRa实测数据与经典模型对比。
cs.NI · eess.SY
查看原文摘要
Wireless links deployed in orchards often exhibit significant variability in the strength of the received signal that is not adequately captured by classical distance-based propagation models. In row-structured olive groves, signal attenuation differs markedly between along-row and cross-row propagation directions, leading to discrepancies when using omnidirectional propagation assumptions such as those adopted in the Free Space Path Loss (FSPL) model or ITU-R vegetation loss formulations. This paper proposes a topology-based propagation model that explicitly accounts for orchard layout and the relative positions of radio devices within the plantation structure. Experimental validation was conducted using LoRa technology operating at 868 MHz, and the results were compared with established models from the literature and with the proposed two-dimensional model. The proposed approach achieves a closer fit to measured RSSI data than conventional models, providing a more reliable basis for link budgeting and network planning in structured agricultural environments.