Polarization is a fundamental property of electromagnetic radio signals but often neglected in localization studies. In this paper. we study the potential benefits of integrating the polarization dimension into localization applications. We develop a three-dimensional (3D) geometric channel model between a base station (BS) and user equipment (UE). https://www.ealisboa.com/quick-save-Velgen-VFF12-Gloss-Gunmetal-special-save/