5G: An overview of Channels characteristics and modelling techniques

Beyond 2020, the era will belong to new and better communication systems named Fifth Generation of communication (5G) systems. To fulfil the service demands and to overcome the technologicalchallenges regarding 5G communication systems, some common standards specifying networks speeds up-to 10 Gbps, greater cell edge rate nearly 90-110 Mbps and latency below 1ms are selected by various telecommunication industries. These standards can be obtained, if the spectrum bands in the range of 100 GHz are explored by the industries, because wider bandwidth channels are available there. In these bands, 5G systems can be employed, if we found accurate radio propagation models. But current channel models for bands below 6 GHz are unable to adderess these. An overview of channel models and 5G channel characteristics for bands up to 100 GHz are given this article. The paper summarizes the major outcomes and observations of previous publications and experiments like ray tracing, done by various academic organisations and industries.