Full-diversity precoding design of bit-interleaved Coded Multiple Beamforming with Orthogonal Frequency Division Multiplexing

摘要

For Multiple-Input Multiple-Output (MIMO) systems with frequency selective fading channels, Bit-Interleaved Coded Multiple Beamforming (BICMB) with Orthogonal Frequency Division Multiplexing (OFDM) can offer both spatial and multipath diversity, making it an important technique. It was proved that full diversity of BICMB-OFDM can be achieved with a condition of RcSL ≤ 1, where Rc, S, and L are the code rate, the number of parallel streams at each subcarrier, and the number of channel taps, respectively. In this paper, the precoding technique is applied to overcome the full diversity restriction with the minimum achievable decoding complexity.