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Design of MIMO OFDM SDM Systems for High Speed Data Transmission

A combination of Multiple-Input Multiple-Output Spatial Division Multiplexing technology and Orthogonal Frequency Division Multiplexing technique, namely MIMO-OFDM SDM systems, been well-known as a potential technology to provide high speed data transmission and spectrum efficiency for modern wireless communications networks. The rising development of Internet related contents and demand of multimedia services leads to increasing curiosity to high speed communications. It has been shown that by using MIMO system architecture, it is possible to increase that capacity considerably. The combination of MIMO-OFDM is beneficial since OFDM enables support of more antennas and larger bandwidths since it simplifies equalization in MIMO systems. Moreover fading is considered as a problem in wireless communication but MIMO channels uses the fading to increase the capacity of entire system. The paper proposes the design of MIMO OFDM SDM system includes transmit side, MIMO channel, and receive side. The process of design consists of Matlab Simulation and Verilog HDL Design. The system performance is evaluated based on bit error rate (BER) criteria, and the efficiency of design also can be done through the calculation of the FPGA element consumption.