Near-Ground Path Loss Measurements and Modeling for Wireless Sensor Networks at 2.4 GHz

Daihua Wang, Linli Song, Xiangshan Kong and Zhijie Zhang

International Journal of Distributed Sensor Networks, 2012, vol. 8, issue 8, 969712

Abstract: Near-ground channel characterization is an important issue in most military applications of wireless sensor networks. However, the channel at the ground level lacks characterization. In this paper, we present a path loss model for three near-ground scenarios. The path loss values for each scenario were captured through extensive measurements, and then a least-square linear regression was performed. This indicates that the log-distance-based model is still suitable for path loss modeling in near-ground scenarios, and the prediction accuracy of the two-slope model is superior to that of the one-slope model. The validity of the proposed model was further verified by comparisons between the predicted and measured far-field path losses. Finally, compared to the generic models, the proposed model is more effective for the path loss prediction in near-ground scenarios.

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:8:y:2012:i:8:p:969712

DOI: 10.1155/2012/969712

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