一种组合DFE和ML V-BLAST的检测算法

Combined ML and DFE Detection for V-BLAST

在MIMO系统中,BLAST是提高系统通信容量的有效方式。最简单的空间复用方式是V-BLAST,它的检测算法相对简单,有ZF-DFE、MMSE-DFE和ML等检测算法。在这几种算法的基础上,讨论了信道相关性对检测性能的影响,给出了ZF-DFE和ML组合的低复杂度检测算法。仿真结果表明,该方法在与ML检测算法性能相差不大的情况下,有效地降低了算法复杂度。

BLAST can effectively increase information rate in MIMO system.The simplest space multiplex method is V-BLAST,which has simple detection algorithm such as ZF-DFE,MMSE-DFE and ML etc.Methods about the channel correlation properties of the detection is discussed,proposed combined ZF-DFE and ML low complexity detection algorithm.Simulation results show that between the method and ML detection algorithm with little performance difference,the method effectively reducing the complexity of the algorithm.