Propagation.module

EM.CUBE's Propagation.module is a physics-based site specific wave propagation modeling tool. It enables wireless engineers to quickly determine how radio waves propagate in urban or natural environments. EMAGWARE has refined and transformed the functionality of its older EMTerrano product into EM.CUBE's new propagation.module with a host of new features including extensive indoor propagation capability.

The rapid growth of wireless communications along with the high costs associated with deployment of effective wireless infrastructures have created an urgent need for computer aided communications network planning tools. Wireless engineers often use measurement-driven, statistical prediction models that exhibit considerable errors especially in areas having mixed building sizes. Advanced ray tracing solutions like EM.CUBE's, on the other hand, find the dominant propagation paths specific to the site under study. These methods model the physical channel and the mechanisms by which radio signals propagate from transmitters to receivers. EM.CUBE's propagation.module calculates the true signal characteristics at the actual site locations using databases of buildings and terrain, not those of an average or representative environment.

FEATURES

SCENE DEFINITION/CONSTRUCTION

• Buildings/Blocks with Arbitrary Geometries and Material Properties Including Multilayer Walls and User Defined Macromodels
• Native Terrain Generator with Various Surface Profiles
• Import of Digital Elevation Map (DEM) Terrain
• Terrain with Arbitrary Material Properties Including Lossy Multilayer Ground and User Defined Macromodels
• Dissipative Vegetation Blocks
• Atmospheric Conditions (Rain and Fog)
• Easy Construction of Indoor Scenes Using Thin Walls
• Radiator Sets with 3-D Directional Antenna Patterns (Imported from Other Modules or External Files)
• Interchangeable Radiator-Based Definition of Transmitters and Receivers (Networks of Transceivers)
• Multiple Transmitters and Transmitter Arrays with Synchronous (Coherent) Superposition
• Multiple Receivers and Receiver Grids for Coverage Modeling
• Lumped Scatterers with 3-D Scattering Patterns (Imported from Other Modules or External Files)

PROPAGATION MODELING

• Polarimetric and Coherent Shoot-and-Bounce-Rays (SBR) Simulation Engine
• GTD/UTD Diffraction Models for Diffration from Building Edges and Terrain
• Prismatic Mesher for Discertization of Arbitrary Block Geometries to Stacked Polygonal Prisms
• Quick 2D vs. 3D Simulation
• User-Defined Domain for Partial Simulation of the Scene
• Ray Reflection, Edge Diffraction and Transmission through Multilayer Thin Walls
• Intelligent Ray Tracing with User-defined Angular Extents and Resolution
• User-Defined Macromodels for Reflection and Transmission Coefficients of Blocks and Terrain (Imported from Other Modules or External Files)
• Full-wave Analysis of Lateral/Norton Surface Waves on Covered Lossy Grounds
• Generalized Okamura-Hata-Like Compact Channel Models
• Statistical Optimization of Site-Specific Compact Channel Models
• Transmitter Sweep (Representing Mobile Paths)
• Frequency Sweep
• Remote Simulation Capability
• Both Windows and Linux Versions of SBR Simulation Engine Available

VISUALIZATION

• Path Loss and Received Power Coverage Maps
• Cartesian Plots of Path Loss along Defined Paths
• Power Delay Profile
• Graphical Visualization of Propagating Rays in the Scene