重庆邮电大学学报（自然科学版）2019，Vol.31Issue(1)：65-71,7.DOI:10.3979/j.issn.1673-825X.2019.01.009
低复杂度的正交空间调制检测算法
Low complexity detection of quadrature spatial modulation
摘要
Abstract
Quadrature spatial modulation (QSM) enhances frequency spectrum utilization of classical spatial modulation (SM) by adding a modulation spatial dimension, which attracts great attention in multiple input multiple output (MIMO).Although the maximum likelihood (ML) detector is able to achieve the optimal performance in QSM, its exhaustive search results in intractable computational complexity. Minimum mean square error (MMSE) and zero forcing (ZF) with lower complexity than ML are investigated in this paper. However, they have a fairly higher bit error rate. Hence, a ZF-based linear detection scheme named enhance zero forcing (EZF) is proposed to achieve better trade-off between complexity and BER performance. Simulation results show that the proposed EZF detector provides better performance than ZF and MMSE, and numerical analysis results present conspicuous reduction in complexity compared with ML detection.关键词
多输入多输出(MIMO)/正交空间调制/线性检测算法/增强型迫零/最大似然Key words
Multiple input multiple output (MIMO)/quadrature spatial modulation/linear detection algorithm/enhance zero forcing/maximum likelihood分类
信息技术与安全科学引用本文复制引用
唐青青,李兆玉,李若梦..低复杂度的正交空间调制检测算法[J].重庆邮电大学学报（自然科学版）,2019,31(1):65-71,7.基金项目
长江学者和创新团队发展计划 (TRT1299) （TRT1299）
重庆市科委重点实验室专项经费 (cstc2013yykfA40010) （cstc2013yykfA40010）
