{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T15:15:04Z","timestamp":1759936504268},"reference-count":17,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2012,8,1]],"date-time":"2012-08-01T00:00:00Z","timestamp":1343779200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"Foundation of National Key Laboratory for Electronic Measurement Technology, China","award":["2011YF003"],"award-info":[{"award-number":["2011YF003"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Distributed Sensor Networks"],"published-print":{"date-parts":[[2012,8,1]]},"abstract":"<jats:p> 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. <\/jats:p>","DOI":"10.1155\/2012\/969712","type":"journal-article","created":{"date-parts":[[2012,8,14]],"date-time":"2012-08-14T21:01:14Z","timestamp":1344978074000},"page":"969712","update-policy":"http:\/\/dx.doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":24,"title":["Near-Ground Path Loss Measurements and Modeling for Wireless Sensor Networks at 2.4\u2009GHz"],"prefix":"10.1177","volume":"8","author":[{"given":"Daihua","family":"Wang","sequence":"first","affiliation":[{"name":"National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China"}]},{"given":"Linli","family":"Song","sequence":"additional","affiliation":[{"name":"Key Laboratory of Instrumentation Science and Dynamic Measurement of The Ministry of Education, North University of China, Taiyuan 030051, China"}]},{"given":"Xiangshan","family":"Kong","sequence":"additional","affiliation":[{"name":"North Automatic Control Technology Institute, CNGC, Taiyuan 030006, China"}]},{"given":"Zhijie","family":"Zhang","sequence":"additional","affiliation":[{"name":"National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China"}]}],"member":"179","published-online":{"date-parts":[[2012,8,14]]},"reference":[{"key":"B1-2012-969712","doi-asserted-by":"publisher","DOI":"10.1109\/WAMIC.2005.1528408"},{"key":"B2-2012-969712","first-page":"16","volume-title":"Proceedings of the 35th Southeastern Symposium on System Theory","author":"Fanimokun A."},{"key":"B3-2012-969712","doi-asserted-by":"publisher","DOI":"10.1109\/JCN.2005.6387982"},{"key":"B4-2012-969712","first-page":"1062","volume-title":"Proceedings of the IEEE Wireless Communications and Networking Conference (WCNC '06)","author":"Hugine A."},{"key":"B5-2012-969712","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2007.051050"},{"key":"B6-2012-969712","doi-asserted-by":"publisher","DOI":"10.1109\/ECTICON.2008.4600417"},{"key":"B7-2012-969712","first-page":"571","volume-title":"Proceedings of the IEEE VTS 50th Vehicular Technology Conference (VTC '99)","author":"Sohrabi K."},{"key":"B8-2012-969712","first-page":"336","volume-title":"Proceedings of the IEEE Military Communications Conference (MILCOM '99)","author":"Foran R. 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