Implementation of Space-time Coding and Decoding Algorithms for MIMO Communication System Based on DSP and FPGA

Multiple input multiple output (MIMO) communication technology will be widely used in future mobile communication system. And the space-time coding and decoding algorithms are key algorithms in MIMO communication technology. In this paper the space-time coding and decoding principle and algorithms of Alamouti scheme are analyzed. To verify the algorithms the MIMO communication experimental platform is designed. The baseband part of the platform is based on DSP and FPGA architecture. FPGA is mainly used to realize bus interface between modules. And DSP is used to accomplish the space-time coding and decoding algorithms and execute the data exchange scheduling strategy. All these ensure the effective implementation of the algorithms and efficient scheduling of data. The system has high real-time performance and flexibility.