摘要： 为在频谱利用率和可靠性之间取得折中，提出一种高效低复杂度的发射接收方案，将空间复用和空间分集相结合，形成一个STBC-VBLAST混合编码的多输入多输出系统。利用线性疏散码的结构特点，在发射端以等效的垂直分层空时码子层发送信号，接收端使用基于排序的QR分解的连续干扰抵消的算法进行译码，同样可以获得较好的复用和分集增益。仿真结果表明，该方案的误码率性能优于其他检测方案，可降低计算复杂度。

关键词: 多输入多输出, 垂直分层空时码, 空时分组码, 线性疏散码

Abstract: In order to seek tradeoffs between spectral efficiency and data reliability, this paper presents an efficient and low-complexity transceiver scheme for the hybrid STBC-VBLAST(Vertical Bell Labs layered Space-Time) systems. The hybrid Multiple Input Multiple Output(MIMO) communication systems can achieve multiplexing gain and diversity gain. The symbols are transmitted as VBLAST coding systems by exploiting the linear dispersion codes. An Ordered, Successive Interference Cancellation(OSIC) decoding algorithm based on sorted QR decomposition is proposed. Simulation results show the scheme outperforms other hybrid schemes in Bit Error Rate(BER) and computing complexity.

Key words: Multiple Input Multiple Output(MIMO), Vertical Bell Labs layered Space-Time code(VBLAST), Space-Time Block Code(STBC), linear dispersion code

中图分类号: 

• TP911.7