Abstract:

A novel practical codebook-precoding multiple-input multiple-output (MIMO) system based on signal space diversity (SSD) with the minimum mean squared error (MMSE) receiver is proposed. This scheme utilizes rotation modulation and space-time-frequency component interleaving. A novel precoding matrix selection criterion to maximize the average signal to interference plus noise ratio (SINR) is also put forward for the proposed scheme, which has a larger average mutual information (AMI). Based on the AMI- maximization criterion, the optimal rotation angles for the proposed system are also investigated. The new scheme can make full use of space-time-frequency diversity and signal space diversity, and exhibit high spectral efficiency and high reliability in fading channels. Simulation results show that the proposed scheme greatly outperforms the conventional bit- interleaved coded modulation (BICM) MIMO-orthogonal frequency division multiplexing (OFDM) scheme without SSD, which is up to 4.5 dB signal-to-noise ratio (SNR) gain.