Research on the Application Solution for Data Buffer in MIMO Experimental Systems

The wireless communication system is up against various engineering challenges. For both the transmitted and the received data processing, fast-access memories with large capacity are required in experimentation systems with Multiple-Input & Multiple-Output technique. SDRAM is a kind of random access memory with large-capacity and high-speed, but many Microprogrammed Control Units or normal Digital Signal Processors cannot directly interface with SDRAM due to the differences between control signals. Based on FPGA(field programmable gate array), a design method of SDRAM controller with USB interface to computer is proposed. Large-capacity data access is implemented at high speed by the controller circuit, which is working effectively in our MIMO experimentation system.