Research on the network access performance of satellite communication based on the GMR-1 standard under shaking antenna

The antenna may has a shake condition when the satellite is working outside the earth, the paper establishes a satellite mobile communication system based on the geostationary orbit mobile radio interface (GMR-1) standard on OPNET platform, the system of the paper has a basic number of users and base stations to research the network access performance of satellite communication under shaking antenna. Its core idea is establish a mathematic model to derive the performance factor, and also, certain basic scenes have been simulated. The location condition and time condition methods are proposed in the paper to establish the model, the network access probability expressions, including the indicators and statistical properties are derived. Then the paper analyzes and simulates the network access indicators and statistical properties with the antenna beam select lag and the antenna beam select cycle. Theory analysis and simulation results show that: compared with the satellite that has a precise pointing antenna, the shaking condition will reduce the network performance by about 103.