Impact of diffuse scattering Far building .Diffuse scattering dramatically increases signal contribution from far obstacles Rx .Diffuse scattering is crucial for time and angle dispersion Near building .Diffuse scattering is important in roof to street propagation Diffuse scattering can be modelled in ray models:ex:Effective Roughness model (see further on) 1111 ·Diffuse scattering dramatically increases signal contribution from far obstacles ·Diffuse scattering is crucial for time and angle dispersion ·Diffuse scattering is important in roof to street propagation Tx Rx Near building Far building Impact of diffuse scattering Tx Rx · Diffuse scattering can be modelled in ray models: ex: Effective Roughness model (see further on)