The Paris 2.5D Digital Map Data is available for download! The dots are the measurements coordinates and the X in above is the emitter location where the coordinate is: -96.99999, 156.00000, 7.00000 The emitter frequency is 1.8G (GSM) and there is only 1 measurement route, which has 1651 test points. You could however, split the Continue Reading »
As a researcher in the wireless propagation, we might want to validate the simulation or propagation models. The COST231 Munich scenario is referenced in many existing literature, for example: An Intelligent Ray Launching for Urban Propagation Prediction. A Performance Evaluation of a Grid-enabled Object-Oriented Parallel Outdoor Ray Launching for Wireless Network Coverage Prediction. Implementation and Continue Reading »
For outdoor scenarios, we often consider each building as the minimal unit, while in indoor scenarios, it can be further decomposed into walls. Despite many existing data formats, e.g. DXF/DWG, Planet, we need something that is simple and does the job pretty well. The XML presents a well-structure document but is considered redundant especially if Continue Reading »
Github: https://github.com/DoctorLai/FreeSpaceCalculator The Path Loss is often referred to the wireless attenuation (in the unit of Decibel i.e. dB) between transmitter and receiver, as shown below. Free Space Path Loss Free Space Path Loss Formula To compute the Path Loss (dB), you will need the following factors: Emitting Frequency i.e. f (usually seen in the Continue Reading »
With 5G networks, there are a few potential challenges for the channel/propagation modelling due to the radiowave behavior and characteristics under 5G frequency bands. Weather The radiowave propagation for millimeter wave for 5G networks is likely to be affected by the weathers. The raining, snowy and windy days may influence the attenuation depending on how Continue Reading »