高阶MIMO下基于格基规约的K-best检测改进算法  

Under Statute of Higher-Order MIMO Lattice-Based K-Best Detection Improved Algorithm

作　　者：杨大江[1] 宋常建[1] 钟子发[1] 

机构地区：[1]电子工程学院安徽省电子制约技术重点实验室,合肥230037

出　　处：《火力与指挥控制》2015年第11期20-24,共5页Fire Control & Command Control

基　　金：国家自然科学基金(11375263);国防预研基金资助项目(41101040402)

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。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.

关 键 词：高阶MIMO 格基规约 K-best 信号检测 

分 类 号：TN911.23[电子电信—通信与信息系统]