A Study of Spectrum Sharing Technology Based on 230MHz Private Spectrum of Electric Power System

Private wireless network communications technology is a key technology of the smart grid, but the scarce spectrum resources greatly restrict the development of the private wireless network communications technology. At present, the 230MHz spectrum can only support a low transfer rate, makes it hard for some emerging business requirements, also restrict the development of traditional business. To solve the emergence of the cognitive radio spectrum resources, realize the dynamic management of spectrum and improve the utilization rate of spectrum, the spectrum sharing technology was proposed to effectively solve the spectrum scarcity. In order to further promote the implementation of the smart grid, this paper puts forward a kind of transmission scheme based on the technology of OFDM and power allocation, and then puts forward a new spectrum planning scheme based on spectrum sharing. The simulation results show that the scheme can effectively increase the system capacity, give a planning scheme of 230MHz spectrum to the State Radio Regulatory Commission of the People's Republic of China(SRRC), and provides a good reference to promote the development of smart grid provides.