Propagation model based on building penetration loss measurement for TVWS system

For the coexistence management between primary and secondary users in TV white space, a simple propagation model for short range transmission and low antenna height is needed. This is crucial to define the interference risk area to primary user from secondary user. For estimating the area, measurements of building penetration loss for wooden and small size light-gauge steel houses have been conducted at UHF band. The measured building penetration losses for the two types of buildings are statistically analyzed to extract the parameters. By using these parameters, a propagation model based on free space loss with additional building penetration losses is proposed. The model is useful to estimate the TVWS secondary user area in the environment that has a mixture of large and small buildings.