A practical radiosity method for predicting transmission loss in urban environments

Authors:
Ming Liang;Qin Liu
Affiliations:
Research Center of Information Electric Power Techniques, North China Electric Power University, Zhuxinzhuang, Beijing 102206, China;Institute of Electrotechnical Fundament and Theory, Vienna University of Technology, Gusshausstrasse 25/351, 1040 Vienna, Austria
Venue:
EURASIP Journal on Wireless Communications and Networking - Special issue on multiuser MIMO networks
Year:
2004

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Abstract

The ability to predict transmission loss or field strength distribution is crucial for determining coverage in planning personal communication systems. This paper presents a practical method to accurately predict entire average transmission loss distribution in complicated urban environments. The method uses a 3D propagation model based on radiosity and a simplified city information database including surfaces of roads and building groups. Narrowband validation measurements with line-of-sight (LOS) and non-line-of-sight (NLOS) cases at 1800MHz give excellent agreement in urban environments.