Polarized Channel Model for Body Area Networks Using Reflection Coefficients

A geometry-based propagation model is proposed for wideband polarized body area network (BAN) channels. Reflection coefficient functions ( -functions) are derived as a function of geometry-based channel modeling parameters for more precise modeling of polarized BAN channels than existing polarized channel models, which exclude the reflection coefficients or use constant-valued reflection coefficients. Conservation-of-polarization (CoP) propagation planes along with geometrical -functions, which we call the CoP- plane methodology, are used to derive the channel polarization functions. Statistical characteristics of polarized BAN channels such as the cross-polarization discrimination (XPD) and time–frequency correlation function (TF-CF) are provided based on this new CoP- plane methodology. The model is validated with measurement data taken at 13 GHz and shown to be in excellent agreement.