Key Technology Of Of High-Speed Mobile Communication System

MIMO communication technology is the current resolution of scarce spectrum resources, a key technology of improving the rate of communication and communication capacity. In order to improve the reliability of high-speed mobile communication system, it's necessary to research the related technology of MIMO communication system.First of all, this paper analyzes the model and the mechanism of high-speed mobile MIMO communication system, then discusses the related multi-antenna spatial modulation, precoding technology and list detection algorithm. A based on precoding high-peed mobile MIMO communication system with multiple active transmit antennas and list detection algorithm is innovatively proposed and designed. Through the experimental simulation, it can be concluded that the Doppler frequency shift existing in system reduces the reliability. By effectively reducing the interference between the receiving antennas, the multi-antenna spatial modulation technique and precoding technique improve the reliability of the high-speed MIMO mobile communication system.