부산대학교 도서관

The construction of smart railways and railway informatization urgently needs the support of Internet of Things (IoT) technology. IoT services will provide comprehensive guarantees for improving the operational safety and quality of service (QoS) of high-speed railway (HSR). In order to improve the reliability of the railway IoT technology, we will start from the network layer and analyze the feasibility of the IoT business spectrum resource game under the heterogeneous network architecture. In this paper, we propose a spectrum sharing algorithm for IoT devices in HSR environment by taking IoT device service as secondary user (SU) to share spectrum with primary user (PU) in heterogeneous network environment, The Auction model and Bidding model for two different scenarios are then described, and their effectiveness is analyzed and demonstrated through experimental evaluation. Our research provides a novel IoT service platform construction solution for the next-generation railway broadband mobile communication system.