基于正交预编码的线性分散空时频编码  

Linear Disperse Space-time-frequency Coding Based Orthogonal Precoding

作　　者：张强[1] 刘顺兰[1] 

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2014年第4期88-92,共5页Journal of Hangzhou Dianzi University：Natural Sciences

摘　　要：在MIMO-OFDM系统中,将能够获得良好的频率分集增益的正交预编码与能获得满空时分集的线性分散码相结合,提出一种基于正交预编码的线性分散空时频编码方法,综合利用二者的优势,获得频率分集与空时分集的合理折中。仿真结果表明,系统误比特性能得到明显的提高。This paper proposes a linear dispersion code scheme based orthogonal precoding in MIMO-OFDM system, it take advantage of both linear dispersion code in space-time domain and orthogonal precoding in frequency domain to ensure the system obtain a reasonable trade off between space-time diversity gain and frequency diversity gain. Simulation results are presented to show the superiority of our codes over the exiting ones.

关 键 词：多输入多输出正交频分复用 正交预编码 线性分散码 空时频编码 

分 类 号：TN919[电子电信—通信与信息系统]