Space-Time Rotational-Invariance Coding Technique and Corresponding Blind Estimation Scheme of Frequency-Selective Channels
Wu Xiao-jun①②; Li Xing①; Wang Ji-long①; Zhang Jin-xiang①
①School of Information Science and Technology, Tsinghua University, Beijing 100084, China; ②Soltware Engineering School, Xi’an Jiaotong University, Xi’an 70049, China
Abstract：This paper firstly addresses the joint space-time symbol block for the Vertical Bell labs LAyered Space-Time (V-BLAST) architecture under the frequency-selective fading environment. Successively, one novel Space-Time Rotational-Invariance Coding Technique (STRICT) is proposed for the V-BLAST architecture. By elegantly exploiting the above introduced rotational-invariance property, one blind estimation scheme of the Multiple-Input Multiple-Output (MIMO) frequency-selective wireless channels is derived for the V-BLAST architecture. Extensive simulation results demonstrate both the validity of the novel STRICT and the performance of the blind estimation scheme of frequency-selective channels.
2005, Vol. 27 
