Network model design for major metropolitan areas using regional railways information in Japan for beyond 5G research

In Japan, some core network topologies have been designed using regional railways information, and three models with regional characteristics, such as population distribution, have been published. For the fifth generation (5G) of wireless communication and beyond 5G (B5G), metropolitan area networks (MANs) are expected to be the primary network to satisfy the strict service requirements. To design MAN models with regional information, a MAN model design algorithm with regional railways information and compression algorithm to reduce the size of the designed network were proposed. Two models, Tokyo TMN23 andTMN12, for the 23 wards of Tokyo were designed using these algorithms. Those models have already been utilized in some existing studies. In this study, we designed MAN models for Aichi prefecture, which includes Nagoya city, and Osaka prefecture, which includes Osaka city, to further enhance B5G research in Japan. The model designed for Aichi has 62 nodes and 84 links, whereas the model for Osaka has 66 nodes and 101 links. These models have day and night versions of the population densities. We investigated the characteristics of the two designed MAN models by comparing them with the Tokyo TMN models. Thus, this study developed the first MAN models of Aichi and Osaka prefectures by using railways information. The proposed models are developed by considering regional characteristics and are expected to be widely used for network simulation and analysis in research.