Academy & Industry Research Collaboration Center
Space-time coding can achieve transmit diversity and power gain over spatially uncoded systems without sacrificing the bandwidth. There are various approaches in coding structures, including space-time block codes. A class of space-time block codes namely quasi-orthogonal space-time block code can achieve the full rate, but there are also interference terms resulting from neighboring signals during signal detection. This causes an increase in decoding complexity and a decrease in performance gain. In this paper, the authors demonstrate an efficient method to reduce decoding complexity and improved performance.