FPGA Design and Implementation of MIMO-SDM Systems for Wireless Internet Communications Networks

摘要

Multiple-input multiple-output (MIMO) systems using spatial division multiplexing (SDM) technique have been considered a potential technology for high speed data transmission wireless internet networks, such as IEEE 802.11, 3GPP Long Term Evolution, WiMAX. Many studies have confirmed that the channel capacity is significantly increased and proportional to the number of transmit and receive antennas without additional power and spectrum compared with single-input single-output systems. Although a lot of technical papers have been considered and evaluated the MIMO SDM systems based on theory analyses and/or computer simulation, but just few ones investigated the systems based on hardware design, which is an important step before going to manufacture the integrated circuits. In the paper, we present our own design and implementation of three MIMO SDM systems on FPGA-based DSP Development Kit. Based on the design, we evaluate the bit-error rate performance of the systems and also consider the consumption of the FPGA elements in our design.