中文摘要：

空间调制是近年来提出的一种新型多天线传输技术．本文考虑了空间调制的多址设计，并首次将其与交织频分多址相结合以实现多用户通信．其次，本文根据空间调制交织频分多址的系统模型，提出了一种基于信道QR分解的信号检测算法．再次，还提出了一种简化的信号检测算法，能够有效的降低计算复杂度，且不会影响传输性能。最后，本文通过数值仿真，证明了所提出的空间调制交织频分多址信号检测算法的有效性。

英文摘要：

Spatial modulation is a recently proposed novel multiple antenna transmission technique. This paper considers the design of multi-access for spatial modulation. Spatial modulation and interleave frequency division multiple access （IFDMA） are combined for multi-user communications and a QR channel decomposition based signal detection method is presented. Furthermore, a simplified detection method without influence of the transmission performance is proposed to reduce the computational complexity. At last, the effectiveness of the proposed spatial modulation IFDMA detection method is oroved by simulation results.