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

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  • Daihua Wang
  • Linli Song
  • Xiangshan Kong
  • Zhijie Zhang

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.

Suggested Citation

  • Daihua Wang & Linli Song & Xiangshan Kong & Zhijie Zhang, 2012. "Near-Ground Path Loss Measurements and Modeling for Wireless Sensor Networks at 2.4 GHz," International Journal of Distributed Sensor Networks, , vol. 8(8), pages 969712-9697, August.
    • Handle: RePEc:sae:intdis:v:8:y:2012:i:8:p:969712
    DOI: 10.1155/2012/969712
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