In this paper, precoding in combination with spreading for coded transmission using MIMO-OFDM is investigated. Although MIMO-OFDM systems provide both spatial and frequency diversities that can be ...

OFDM combines the benefits of Quadrature Amplitude Modulation (QAM) and Frequency Division Multiplexing (FDM) to produce a high-data-rate communication system. QAM refers to a variety of specific ...