Dual-polarized wireless communications: from propagation models to system performance evaluation

In this paper, we address the potential benefits of dual-polarized arrays in multi-antenna wireless systems. After an extensive literature overview of experimental data, we present a new and simple analytical framework to model dual-polarized Rayleigh and Ricean fading channels for arbitrary array sizes. The model relies on a limited number of physical parameters, such as the channel spatial correlations, the channel co-polar and the cross-polar ratios and the antenna cross-polar discrimination. Then, we investigate the multiplexing advantage of dual-polarized transmissions through the evaluation of the ergodic mutual information, for both TITO and MIMO systems. Finally, the performance of two space-time coding schemes (Alamouti OSTBC and uncoded Spatial Multiplexing) is evaluated via a detailed analysis of the pairwise error probability.

• Type: Journal
• Year: 2008
• Where: TWC
• Authors: Claude Oestges, Bruno Clerckx, Maxime Guillaud, Mérouane Debbah
• Keywords: Channel Spatial Correlations, Multi-antenna Wireless Systems, Simple Analytical Framework, TWC 2008