Due to the high decoding complexity of the conventional full rate Quasi-Orthogonal Space-Time Block Code (QOSTBC) over eight transmit antennas, two precoding-based transmit schemes are proposed.

• 针对传统八天线全码率准正交空时分组码解码复杂度高的问题,该文提出了两种基于预编码的传输方案。