期刊论文

Non-cooperative virtual MIMO transmission based on STBC-OFDM

中文

湖南科技大学学报(自然科学版)

1672-9102

2017

32

3

67-74

10.13582/j.cnki.1672-9102.2017.03.012

国家自然科学基金资助项目（61540012）； 湖南省教育厅重点资助项目（16A181）； 衡阳市科技计划发展资助项目（2015KG48）；

本校为第一机构

针对多用户配对虚拟MIMO（multiple input multiple output）安全性差、对信道估计器依赖性强的问题,在分析理想MIMO系统和多径SISO（single input single output）系统本质关系的基础上,提出一种基于空时分组编码STBC（space-time block coding）和正交频分复用（orthogonal frequency division multiplexing,OFDM）的非协作式虚拟MIMO传输策略.在发送端,为了获得最佳发射分集增益,利用信道循环矩阵奇异值分解（singular value decomposition,SVD）后得到的左酉矩阵进行预编码;在接收端,为了获得平行子信道传输效果,提出一种基于低复杂度线性STBC译码和傅里叶变换预解码的非协作虚拟MIMO接收方...

on basis of analyzing the essential relationship between the ideal MIMO and multi-path SISO, a non-collaborative virtual MIMO based on STBC and OFDM was proposed to counter the poor security performance and strong dependence on channel estimation of virtual MIMO using user-pairing algorithm. To obtain full diversity gain, a valid pre-encoding for virtual MIMO was implemented at the transmitter by use of the left unitary matrix, which was obtained by singular value decomposing on the channel cyclic matrix. At the receiver, a detection scheme for the virtual MIMO based on a linear STBC decoding ...