LTE系统中基于传输分集的QR接收机设计  

QR receiver design based on transmit diversity 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,重庆400065

出　　处：《电子技术应用》2011年第2期102-105,共4页Application of Electronic Technique

摘　　要：LTE系统有传输分集和空间复用两种传输模式。在传输分集模式下,传统的最大比合并算法在进行信号检测时,误比特率较高。为此设计了应用于传输分集模式下的QR接收机,并对信号检测模块进行详细描述。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QR接收机能够较大地降低误比特率,提升性能。LTE system adopts transmit diversity and spatial multiplexing two modes. In transmit diversity mode,the traditional MRC algorithm which is uesd for signal detection,has a high error rate. This paper proposes the QR receiver in LTE system and gives a detailed description in signal detection part. Because the soft information is carried out in signal detection, the loss infor- mation has been avoided, Simulated result shows that the QR receiver can reduce the bit error rate and improve the performance tremendously.

关 键 词：长期演进 传输分集 QR接收机 软信息 

分 类 号：TN929.5[电子电信—通信与信息系统]