LTE-A系统中球形译码检测算法研究  

Research of sphere decoding detection algorithm in LTE-A system

作　　者：陈发堂[1] 梁涛涛[1] 李小文[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》2012年第1期85-89,共5页Application of Electronic Technique

基　　金：国家科技重大专项项目(2009ZX03002-009)

摘　　要：详细研究了球形译码算法流程以及两种常用的初始半径选择算法,提出了一种基于阈值的球形译码检测算法,充分考虑到信噪比以及信道条件数对检测算法的影响,在保证球形译码性能的前提下,降低球形译码算法复杂度。该算法已应用于TD-LTE无线综合测试仪表的开发中。This paper researched the flow of sphere decoding algorithm and two common algorithm of initial radius selection, and a new type of sphere decoding algorithm based on threshold is proposed. This new algorithm , considering the influence of signal-to-noise ratio and channel condition number on detection algorithm , has lower sphere decoding complexity and ensures performance of sphere decoding. This algorithm has been applied to the LTE-TDD wireless integrated test instrument.

关 键 词：LTE—A 信号检测 球形译码 译码复杂度 

分 类 号：TN929.5[电子电信—通信与信息系统]