Abstract-This work presents results for the path loss due to foliage at 2.4 GHz using RF equipment and XBee-Pro ZB S2B transceiver modules in Agricultural fields (Corn, Paddy and Groundnut) and Gardens (Coconut garden with green grass, open lawn with dry green grass and wet green grass) targeting short-range, near ground RF propagation measurements for planning and deployment of Wireless Sensor Communications for precise agriculture and plantation management applications. Path Loss (PL), Path Loss Exponent (PLE) and corresponding Root Mean Square Error (RMSE) values were deduced from the measured RSS from various positions in these environments. Empirical foliage loss prediction models such as COST 235, Early ITU Vegetation and Weissberger models were compared with the experimental results.
This work reports Received Signal Strength (RSS) at 868/915/2400 MHz utilizing RF equipment and Matlab simulations in Forest and Plantation (Mango & Guava) Environments. Path loss, Vegetation water content and corresponding Cumulative Distribution Function (CDF) values were deduced from the measured RSS from various positions in foliage environments using unit gain omnidirectional antennas at 1m height from the ground. Empirical foliage loss prediction models such as Cost 235, ITU-R and Weissberger models were compared with the experimental results. The research work presented in this paper is predominately targets characterizing short-range near ground radio link for Wireless Sensor Communications/Networks in vegetation environments.
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