无线通信MIMO中的频率同步  

A Survey on Frequency Synchronization in MIMO Systems

作　　者：邓凯[1] 

机构地区：[1]宜宾学院物理与电子工程学院,四川宜宾644000

出　　处：《宜宾学院学报》2012年第6期70-72,共3页Journal of Yibin University

基　　金：宜宾学院博士科研启动金项目(2011B09)

摘　　要：分别针对无线通信集中式多入多出(MIMO)和分布式MIMO系统,对频偏估计和频偏补偿这两个方面的基本原理和研究现状进行了详细分析,总结出已有研究的不足之处在于对分布式MIMO中的频偏估计以及分布式MIMO-OFDM(正交频分复用)中的频偏补偿的研究尚不完善,指出未来可能的研究方向应主要集中在分布式MIMO中基于一般系统模型的频偏估计方法和分布式MIMO-OFDM中具有实用价值的低复杂度频偏补偿方法两个方面.The fundamentals and state of the art of the estimation and compensation of carrier frequency offset（CFOs） for multi-input multi-output（MIMO） systems with co-located antennas and distributed antennas were addressed respectively.By analyzing the disadvantages of the existing research,it is indicated that the study on the CFO estimation for distributed MIMO and the CFO compensation for distributed MIMO-OFDM（orthogonal frequency division multiplexing） appear incomplete.So the further research interest may include the CFO estimation methods based on the general system model for distributed MIMO and the practical low-complexity CFO compensation methods for distributed MIMO-OFDM.

关 键 词：MIMO OFDM 分布式天线 频率同步 载波频偏 

分 类 号：TN914[电子电信—通信与信息系统]