基于块空时分组编码DFT-S-OFDM虚拟MIMO传输方案  

A Virtual MIMO Transmission Scheme Based on DFT-S-OFDM with Block Space-Time Block Coding

作　　者：刘海涛[1] 王勇[1] 李冬霞[1] 

机构地区：[1]中国民航大学天津市智能信号与图像处理重点实验室,天津300300

出　　处：《电子与信息学报》2010年第5期1183-1187,共5页Journal of Electronics & Information Technology

基　　金：天津市自然科学基金(09JCYBJC00600);中国民航大学科研启动基金(06QD09X)资助课题

摘　　要：该文提出了一种基于块空时分组编码的DFT-S-OFDM上行链路虚拟MIMO传输方案,并给出一种低复杂度的虚拟MIMO系统接收机检测算法。仿真研究表明:基于块空时分组编码的DFT-S-OFDM虚拟MIMO传输方案可保持原DFT-S-OFDM系统低峰均比的特性,显著降低虚拟MIMO系统接收机检测门限,提高上行链路虚拟MIMO系统传输可靠性。A virtual MIMO transmission scheme based on Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing （DFT-S-OFDM） with Block-Space-Time Block Coding （B-STBC）is proposed and a lower complexity detection algorithm for the virtual MIMO system is also presented in this paper. Simulation results show that the proposed scheme can keep the same Peak to Average Power Ratio （PAPR） characteristic as the original DFT-S-OFDM system and reduce the detection threshold of virtual MIMO system, which can improve the transmission reliability in the uplink virtual MIMO system.

关 键 词：块空时分组编码 DFT-S-OFDM 峰均比 虚拟MIMO 

分 类 号：TN929.5[电子电信—通信与信息系统]