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A Practical Radiosity Method for Predicting Transmission Loss in Urban Environments

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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 1800 MHz give excellent agreement in urban environments.

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Correspondence to Ming Liang.

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Keywords

  • propagation model
  • power coverage
  • prediction tool
  • transmission loss
  • urban environment
  • radiosity