Fractal modelling of rain fields: From event on demand to annual statistics

A poster to show the fractal modelling of rain fields. Radio systems operating at frequencies of above 10 GHz are adversely affected by rain, clouds and atmospheric gases. As the radio spectrum below 10 GHz becomes increasingly congested, there is significant pressure to open up these higher frequencies to commercial exploitation. Rain fade mitigation techniques (FMT) such as adaptive transmit power control are often suggested as methods of improving spectrum efficiency, either through allowing exploitation of higher frequency bands, or through improving the packing density of terrestrial links at lower bands. However, in order to accurately implement these FMT, detailed knowledge of the spatio-temporal variation of rain fields is required, on scales of hundreds of metres and timescales of the order of seconds. As yet, radar rain maps at these resolutions are not available, hence the need for accurate simulated rain fields