Analysis of Measured and Simulated Delay and Angular Propagation Channel Parameters for MIMO Network Planning

A verification of delay and angular parameters of a deterministic ray tracing MIMO channel model requires dedicated high-resolution wide-band directional propagation channel measurements to estimate according channel parameters and is rarely done. This contribution presents such an analysis in the 2.53 GHz range through simulations and measurements in a real MIMO urban outdoor cellular environment. Our results indicate a good fit between measurement and simulation data for the analyzed delay and receiver angular channel parameters in macro-cellular deployments and especially in LOS environments. We notice, however, some deviations in case the transmit antennas are at rooftop level (micro-cellular deployment). This result suggests to use more reliable eigenvalue ratios for spatial multiplexing probability analysis instead of angular spreads in micro-cellular and heterogeneous MIMO network planning and optimization.