MIMO SC-FDMA定时同步的并行干扰消除算法  

Parallel Interference Cancellation Algorithm for MIMO SC-FDMA Timing Synchronization in LTE-Advanced Uplink

作　　者：郭宁[1] 彭端[2] 李源[1] 

机构地区：[1]广东工业大学信息工程学院,广东广州510006 [2]广东工业大学实验教学部,广东广州510006

出　　处：《电子科技》2014年第10期87-90,共4页Electronic Science and Technology

基　　金：广东省广州市应用基础重点研究基金资助项目(2012J4100071;2013J4100111)

摘　　要：针对LTE-Advanced上行链路MIMO SC-FDMA系统中定时同步问题,提出一种基于QR分解与并行干扰消除PIC相结合的定时同步算法。该算法通过QR分解检测获得初步的信息估计值,应用并行干扰消除方法,将定时偏移所产生的干扰从接收信号中消除。理论分析与仿真结果表明,该算法可显著提高系统性能。A timing synchronization algorithm combining QR decomposition with parallel interference cancellation is proposed. The problems caused by timing deviation in LTE-Advanced uplink MIMO SC-FDMA system are solved. The preliminary information estimate is obtained by the QR decomposition algorithm,and the interference which is generated by timing offset is eliminated from the received signal by this method. Theoretical analysis and simulation results show that the algorithm can significantly improve system performance.

关 键 词：多输入多输出 单载波频分多址 定时同步 并行干扰消除 

分 类 号：TN929.5[电子电信—通信与信息系统]