球解码及其一种改进算法  

Sphere decoder and a modified algorithm

作　　者：凌春红[1] 刘陈[1] 

机构地区：[1]南京邮电大学,江苏南京210003

出　　处：《微型机与应用》2010年第3期49-51,共3页Microcomputer & Its Applications

摘　　要：MSD算法给出了一种由符号检测错误概率决定的区间估计方法,并将得出的区间与SE准则下的检测区间相结合,寻求两者在调制信号星座图中的交集。仿真结果表明,该改进算法在保证解码性能的基础上,有效地降低了检测的复杂度。Modified sphere decoder algorithm deduces a decoder district decided by symbol detection error rate, and elicits the intersection of the district and the other one deduced by SE criterion in QAM constellation. Simulation result has indicated that the modified algorithm has excellent performance as well as a lower complexity.

关 键 词：多输入多输出 高斯分布 球解码 复杂度 

分 类 号：TN929.4[电子电信—通信与信息系统]