MIMO系统中球形译码算法的应用  

Application Sphere Decoding Algorithm in MIMO System

作　　者：刘俊[1] 魏急波[1] 蓝兴[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《现代电子技术》2008年第5期48-50,共3页Modern Electronics Technique

摘　　要：MIMO系统在带来巨大容量的同时,也产生了极大的接收信号检测复杂度。球形译码算法是较好解决这一问题的有效途径之一,通过减少比较信号点的个数达到降低计算量的要求。根据MIMO系统的信号模型特点,结合相关研究的新进展,对球形译码原理和算法进行了探讨。理论分析表明,该方法可以用较少的计算量来获得最大似然检测性能,有较高的应用价值。MIMO system brings huge capacity as well as high complexity of the receiving signal detection. Sphere decoding algorithm is one of the methods which can solve this problem effectively. It can reduce calculating requirement by shortening the number of comparing signal points. According to the signal model characteristics of MIMO system,combined with the last related research progress,sphere decoding theory and algorithm are analyzed. Theoretic analysis indicates that this algorithm can achieve the quality of Maximum Likelihood （ML） detection by less calculation,and it has great applicable value.

关 键 词：多输入多输出 垂直分层空时码 球形译码 最大似然检测 

分 类 号：TN929.5[电子电信—通信与信息系统]