LTE系统中turbo接收机的设计  

Turbo Receiver Designing in LTE System

作　　者：李小文[1] 郭歌[1] 陈发堂[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院

出　　处：《现代电信科技》2010年第7期43-46,57,共5页Modern Science & Technology of Telecommunications

摘　　要：LTE系统采用了OFDM、MIMO等关键技术。传统的V-BLAST、QR算法在进行信号检测时,需要进行硬判决,造成了性能的下降。为此,本文提出了应用于LTE系统的turbo接收机,对其每个组成模块进行详细描述。由于在信号检测时以软信息的方式进行处理,避免了信息的损失。仿真结果表明,该turbo接收机能够极大地降低误比特率,提升性能。LTE system adopts key technologies such as OFDM,MIMO.The traditional V-BLAST and QR algorithms need to carry out the hard decision in signal detection,which results in decline in performance.This paper proposes the turbo receiver in LTE system and gives a detailed description in each component of it.Because the soft information is carried out in signal detection,the information loss can be avoided.Simulation result shows that the turbo receiver is able to reduce the bit error rate and improve the performance tremendously.

关 键 词：长期演进 信号检测 TURBO接收机 软信息 

分 类 号：TN92[电子电信—通信与信息系统]