Risk Modeling and Assessment of Spectrum Utilization During Large-Scale Events

In large-scale events, a large number of wireless devices are often used. In order to avoid spectrum utilization risk among these devices, a risk modeling and assessment method based on electromagnetic wave propagation is proposed in this paper. The path loss of electromagnetic wave propagation in urban area and suburban area is analyzed with Okumura-Hata model. The risk matrix method is adopted to calculate the risk level during the risk assessment procedure, and an example is given to show the process of risk assessment. The result of the example is consistent with the assumption.