中文摘要：

通过对k-best检测算法的分析,在研究了格基规约（Lattice Reduction,LR）原理的基础上,结合对基于LR的MMSE-SIC检测算法的比较,验证了对信道矩阵进行LR预处理后,信号检测性能能得到近6-d B的提升,由此,在8＊8多天线系统下,提出了一种基于LR的SR-k-best检测算法,经过仿真比较发现,该算法检测复杂度更低,而降低的检测性能可以忽略不计,是一种近最优的低复杂度高阶MIMO检测算法。

英文摘要：

By k-best detection algorithm analysis,studied the lattice reduction in basis（Lattice Reduction,LR） principle,combined with comparison to the MMSE-SIC detection algorithm based on the LR verified after pretreatment LR channel matrix,the signal detection performance can be nearly6-d B increased,whereby in the 8 ＊ 8 multi-antenna system proposed SR-k-best detection algorithm based on LR. Through simulation comparison,the complexity of the detection algorithm lower detection performance decrease is negligible,which is a low-complexity near-optimal order MIMO detection algorithm.