For improving the performance of MIMO system with quasi-orthogonal STBC exploiting the channel knowledge, a new transmitter scheme combining the linear precoding matrix is proposed.

• 为了充分利用信道信息改善应用准正交空时分组码的MIMO系统的性能，该文提出了将预编码矩阵和准正交空时分组码相结合的发射机制。