光通信研究Issue(1)：64-67,4.DOI:10.13756/j.gtxyj.2015.01.020
LTE-A 系统一种降低复杂度的软球形检测算法
A complexity-reduced algorithm for soft-output sphere detection in LTE-A Systems
摘要
Abstract
Although soft-output sphere decoding algorithm can approach to the bit error performance of Maximum Likelihood (ML)algorithm,it has high computational complexity.This paper presents a complexity-reduced soft-output sphere decoding algorithm,which introduces the reduced noise element to the reverse iterative upper triangular matrix R of QR decomposition algorithm so as to narrow the initial search radius.Then it uses the minimum distance criterion to effectively trim the search tree and narrow the tree search space.MATLAB simulation results show that this algorithm can reduce the system computa-tional complexity to a great extent while approaching to the bit error performance of traditional soft sphere decoding.关键词
LTE-A 系统/信号检测/软球形译码Key words
LTE-A system/signal detection/soft sphere decoding分类
信息技术与安全科学引用本文复制引用
张爱平,王丹,李小文,周瑶,于秀玲..LTE-A 系统一种降低复杂度的软球形检测算法[J].光通信研究,2015,(1):64-67,4.基金项目
国家科技重大专项资助课题(2012ZX03001-009-004,2011ZX03001-003-01) （2012ZX03001-009-004,2011ZX03001-003-01）
