Path Loss Modeling and Analysis for Low Antenna Height over Grass Environment

Wave propagation modeling over grass terrains with low antenna height is essential for applications such as wireless sensor deployment and vehicular communication in rural environment. In this paper, a theoretical multi-ray path loss model is proposed for low antenna height over grass environment, which incorporates the direct, reflected, and diffracted rays. A set of measurements is performed to verify the proposed model. The developed model is also validated with already published measurements data from the literature, and found to have better predicting accuracy as compared to the existing path loss models. The proposed path loss model can be used to support the design of the wireless sensor and vehicular networks over grass environment.