IRACON channel measurements and models

Future wireless systems are envisaged to be deployed in various scenarios and across a wide range of frequencies which include below 6 GHz with massive multiple input multiple output (MIMO) configurations and above 6 GHz in the millimeter wave frequency band and extending to the Tera Hertz (THz) band. Successful deployment requires a range of models informed by measurements and extraction of appropriate channel parameters for high data rates and dense deployment. Starting from the deployment scenarios which include traditional cellular deployment, short range and long-range links, and more recent high-speed scenarios including vehicular communication e.g. vehicle to infrastructure and vehicle to vehicle, and high speed train scenarios, on body networks and challenging industrial deployment. Measurements in typical environments are reported for outdoor, indoor, outdoor to indoor and clutter loss with estimated channel parameters such as path loss model coefficients and wideband parameters such as RMS delay spread. Simulations of propagation using ray tracing tools are compared with measurements in various frequency bands. The specifics of propagation in the millimeter wave band including the impact of blockage such as human and vehicular blockage and the impact of precipitation are studied from measurements and simulation. Massive MIMO channel measurements in various frequency bands are assessed and modelled.