WINNER II Model Source Code: MATLAB Implementation for Multi-Scenario Channel Modeling

The WINNER II model is a widely adopted channel modeling framework in wireless communications, with its MATLAB implementation providing researchers a standardized multi-scenario channel simulation tool. This source code package contains three specific implementations corresponding to different application scenarios: Indoor Office, Urban Micro-cell, and Urban Macro-cell, which simulate small-scale high-density environments, medium coverage areas, and wide-area mobile communication scenarios respectively. Core functionalities include path loss calculation, multipath delay profile generation, and spatial parameter configuration, supporting LOS/NLOS (Line-of-Sight/Non-Line-of-Sight) switching through parametric modeling. The model follows geometric stochastic channel modeling principles and dynamically generates time-varying channel impulse responses. It can be integrated into MIMO system performance evaluation or 5G pre-research projects. For developers studying millimeter-wave propagation characteristics or massive antenna arrays, the implementation allows quick validation of solution feasibility by adjusting carrier frequency and antenna spacing parameters through customizable MATLAB functions. Important implementation notes: The quasi-static nature of WINNER II makes it more suitable for slow-changing channel analysis. For high-dynamic simulations, integration with Doppler extension modules is recommended. Although based on MATLAB, the generated channel parameters can be exported to network simulation platforms like NS-3 for joint validation through standardized data export functions within the codebase.