Research on QoE traffic control based on cyber physical system

Traffic controls that can satisfy users' Quality of Experience (QoE) requirements are essential in operating communication networks efficiently and robustly. In this research, we try to find QoE oriented traffic control schemes that detect anomaly traffic and suppress congestion in communication networks. Firstly, we proposed the reservation congestion control scheme which realizes the interactive voice communication efficiently under the condition of congestion after disasters. It was clarified that the proposed method can achieve a high call completion rate and suppress the reservation delay using improved method applying priority control. Secondly, we also verified the processing time and traffic anomaly detection accuracy with a sketch scheme as a data reduction method for traffic anomaly detection. A guideline was clarified for selecting two sketch parameters: the number of hash functions and hash table size in real network operation.