无线光通信中的空时编码研究进展（二）

无线光MIMO技术结合了天线发射分集、接收分集与信道编码分集，可以显著提高信道容量。介绍了笔者在分层空时编码方面的若干研究进展，分析了误码率特性与发射/接收天线数目、检测算法之间的关系，比较了水平分层空时码、螺旋分层空时码、对角分层空时码和垂直分层空时码不同的编码方案，以及不同检测算法对不同的湍流强度的抑制作用。经分析得出:三种分层空时编码性能最好的是对角分层空时编码，其次是螺旋分层空时编码，最后是水平分层空时编码。

Research progress of space-time code in wireless optical communications (II)

The wireless optical MIMO technology which combined antenna transmit diversity, receive diversity and channel coding diversity, significantly improved the channel capacity. The auther's research progress at layered space-time code was introduced, the relationship between error rate characteristics and transmitting/receiving antenna number, detection algorithm was analyzed, this paper compared the different coding scheme that including horizontally-layered space-time codes (H-BLSTC), threaded-layered space-time codes (T-BLSTC), diagonally-layered space-time codes (D-BLSTC) and vertical-layered space-time codes (V-BLSTC). Then, it's also analyse turbulence intensity inhibits effects due to different coding scheme and detection algorithm. Through the analysis of three kinds of layered space-time coding to get diagonally-layered space-time codes is own the best performance, followed by threaded-layered space-time codes, and at last is the horizontally-layered space-time codes.