Modelling Polarimetric Power Delay Spectrum for Indoor Wireless Channels via Propagation Graph Formalism

This paper presents approximate expressions for polarimetric power delay spectrum and cross-polar power ratio via propagation graph modelling formalism. The expressions are derived considering average signal propagation in a graph. The models relate co- and cross-polar power and the power ratio to model parameters (number of scatterers, probability of visibility, reflection gain and polarization coupling parameter) thereby providing a useful approach to investigate the averaged effect of these parameters on the channel statistics. Simulation results show statistics obtained using the model and the approximate expressions match very closely.