作者
Nasir Faruk, Segun I Popoola, Nazmat T Surajudeen-Bakinde, Abdulkarim A Oloyede, Abubakar Abdulkarim, Lukman A Olawoyin, Maaruf Ali, Carlos T Calafate, Aderemi A Atayero
发表日期
2019/6/6
期刊
IEEE access
卷号
7
页码范围
77293-77307
出版商
IEEE
简介
Deep knowledge of how radio waves behave in a practical wireless channel is required for effective planning and deployment of radio access networks in urban environments. Empirical propagation models are popular for their simplicity, but they are prone to introduce high prediction errors. Different heuristic methods and geospatial approaches have been developed to further reduce path loss prediction error. However, the efficacy of these new techniques in built-up areas should be experimentally verified. In this paper, the efficiencies of empirical, heuristic, and geospatial methods for signal fading predictions in the very high frequency (VHF) and ultra-high frequency (UHF) bands in typical urban environments are evaluated and analyzed. Electromagnetic field strength measurements are performed at different test locations within four selected cities in Nigeria. The data collected are used to develop path loss …
引用总数
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