高技术通讯2017，Vol.27Issue(3)：237-244,8.DOI:10.3772/j.issn.1002-0470.2017.03.006
RZF预编码与MMSE-SIC检测联合的大规模MIMO系统预编码设计算法
An algorithm for precoding design for massive MIMO systems based on combining RZF precoding with MMSE-SIC detection
摘要
Abstract
The precoding design of massive multiple imput multiple output (MIMO) systems was studied.Considering that massive MIMO systems use the increasement of the number of user antennas to improve the spectrum efficiency, but this brings more inter-user interference so causing the negative influence on the system performance, an improved precoding design algorithm using the combination of regularized zero-forcing (RZF) and minimum mean squared error-successive interference cancellation (MMSE-SIC) detection was proposed.The algorithm performs the signal pre-processing to balance the effect between inter-user interference and noise interference by using the RZF precoding algorithm in the base station, and then uses the MMSE-SIC detection algorithm to further reduce the signal interference, thus the system capacity is increased.The experimental results show that under the condition of the serious inter-user interference, the algorithm using the combination of RZF precoding and MMSE-SIC detection has the good applicability and its spectrum efficiency is better than the traditional RZF algorithm in the condition that the channel state information is conpletely known or completely unknown.关键词
大规模多输入多输出(MIMO)/预编码/信号检测/频谱效率/信道状态信息Key words
massive multiple imput multiple output (MIMO)/precoding/signal detection/spectrum efficiency/channel state information引用本文复制引用
谢斌,刘述睿,谢舒闽..RZF预编码与MMSE-SIC检测联合的大规模MIMO系统预编码设计算法[J].高技术通讯,2017,27(3):237-244,8.基金项目
国家自然科学基金(61363076)和江西省自然科学基金(20142BAB207020)资助项目. （61363076）
