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.
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
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
multiple input multiple output orthogonal frequency division multiplexing
orthogonal precoding
linear disperse code
space-time-frequency coding
