Minimising the Electromagnetic Exposure at Hot-Spot Areas using Hybrid (DVB-H/UMTS) Networks

A hybrid mobile communication network as considered in this paper consists of a point-to-point network (UMTS) and a point-to-multipoint network (DVB-H). The benefit of combining these two networks is an optimised transfer of data by collecting several user requests for a single response via the broadcast network. Thus, capacity can be saved, UMTS cells can be unloaded and the mean response time of the system can be reduced. Besides these advantages, hybrid networks can be applied to decrease electromagnetic exposure at hot-spots. This problem will be analysed in this paper. Therefore, a scenario has been developed which includes a hot-spot area. Furthermore, this paper includes the definition of a criterion to estimate the benefit of reducing the electromagnetic exposure using a hybrid network. The results are shown in an example scenario.