改进Turbo-BLAST检测算法及其仿真

被引:0
|
作者
李伟霞 [1 ]
姚富魁 [1 ]
机构
[1] 安徽工业大学电气信息学院
关键词
Turbo-BLAST; 迭代检测译码; 软干扰消除(SIC); 最小均方误差(MMSE); 最大后验概率(MAP); 软输入软输出(SISO);
D O I
暂无
中图分类号
TN911.23 [信号检测与估计];
学科分类号
070104 ; 081101 ;
摘要
Turbo-BLAST系统基于MMSE的迭代软干扰消除检测技术可有效克服由于V-BLAST的应用带来的多流干扰,但是在迭代检测译码过程中存在错误传播,并且收敛性较差,尤其在接收天线远小于发射天线时。而MAP迭代检测算法的性能接近最优,但复杂度随发射天线和调制阶数呈指数增长。所以本文把这两种算法相结合,提出改进的SIC-MAP/MMSE检测算法。仿真结果表明,在相同频谱利用率的条件下,这种新检测算法在性能和收敛性上明显优于MMSE的迭代软干扰消除(SIC-MMSE)检测技术。
引用
收藏
页码:66 / 69
页数:4
相关论文
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