• RECOMMENDATION ITU-R P.681-10 - Propagation data required for the design of Earth-space land mobile telecommunication systems
  • Foreword
  • Policy on Intellectual Property Right (IPR)
  • Scope
  • Annex 1
  • 1 Introduction
  • 2 Tropospheric effects
    • 2.1 Attenuation
    • 2.2 Scintillation
  • 3 Ionospheric effects
  • 4 Shadowing
    • 4.1 Roadside tree-shadowing model
      • 4.1.1 Calculation of fading due to shadowing by roadside trees
        • 4.1.1.1 Extension to elevation angles  60
        • 4.1.1.2 Application of roadside shadowing model to non-geostationary (non-GSO) and mobile-satellite systems
      • 4.1.2 Fade duration distribution model
      • 4.1.3 Non-fade duration distribution model
    • 4.2 Roadside building-shadowing model
    • 4.3 Special consideration of hand-held terminals (user blockage)
    • 4.4 Modelling building blockage effects using street masking functions (MKF)
  • 5 Multipath models for clear line-of-sight conditions
    • 5.1 Multipath in a mountain environment
    • 5.2 Multipath in a roadside tree environment
  • 6 Statistical model for mixed propagation conditions
    • 6.1 Prediction of fading statistics for a single satellite link
    • 6.2 Time series synthesis of fading complex envelope
  • 7 Physical-statistical wideband model for mixed propagation conditions
    • 7.1 Model input
    • 7.2 Model output
    • 7.3 Model output usage
  • 8 Wideband satellite-to-indoor channel propagation model
    • 8.1 Scope of the simulation model
    • 8.2 Applicability of the model
    • 8.3 Input Parameters
    • 8.4 Output Parameters
  • 9 Satellite diversity
    • 9.1 Uncorrelated case
    • 9.2 Correlated case
      • 9.2.1 Quantification of the shadowing cross-correlation coefficient in urban areas
      • 9.2.2 Availability calculations
    • 9.3 Modelling satellite diversity effects using MKFs
  • Annex 2
  • 1 Introduction
  • 2 Frequencies between 1.5 and 3 GHz
    • 2.1 Urban environment
    • 2.2 Suburban environment
    • 2.3 Village environment
    • 2.4 Rural wooded environment
    • 2.5 Residential environment
  • 3 Frequencies between 3 and 5 GHz
    • 3.1 Urban environment
    • 3.2 Suburban environment
    • 3.3 Village environment
    • 3.4 Rural wooded environment
    • 3.5 Residential environment
  • 4 Frequencies between 10 and 20 GHz
    • 4.1 Rural environment
    • 4.2 Suburban environment