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[ "骆楷(1992−),男,重庆邮电大学通信与信息工程学院硕士生,主要研究方向为大规模MIMO系统下的空间调制技术。" ]
[ "黄俊伟(1969−),男,重庆邮电大学通信与信息工程学院高级工程师、硕士生导师,主要研究方向为新一代宽带移动通信核心芯片、协议及系统应用、宽带无线通信。" ]
[ "周朋光(1992−),男,重庆邮电大学通信与信息工程学院硕士生,主要研究方向为5G关键技术、超密集网络中干扰协调技术。" ]
[ "徐浩(1992−),男,重庆邮电大学通信与信息工程学院硕士生,主要研究方向为5G关键技术、毫米波MIMO 系统混合波束成形技术。" ]
[ "吴灿(1992−),男,重庆邮电大学通信与信息工程学院硕士生,主要研究方向为大规模MIMO技术。" ]
网络出版日期:2017-05,
纸质出版日期:2017-05-15
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骆楷, 黄俊伟, 周朋光, 等. 正交空间调制的低复杂度检测算法[J]. 电信科学, 2017,33(5):75-81.
Kai LUO, Junwei HUANG, Pengguang ZHOU, et al. A low-complexity detection algorithm for quadrature spatial modulation systems[J]. Telecommunications science, 2017, 33(5): 75-81.
骆楷, 黄俊伟, 周朋光, 等. 正交空间调制的低复杂度检测算法[J]. 电信科学, 2017,33(5):75-81. DOI: 10.11959/j.issn.1000−0801.2017121.
Kai LUO, Junwei HUANG, Pengguang ZHOU, et al. A low-complexity detection algorithm for quadrature spatial modulation systems[J]. Telecommunications science, 2017, 33(5): 75-81. DOI: 10.11959/j.issn.1000−0801.2017121.
针对正交空间调制(QSM)系统中激活天线数的不确定性、最大似然(ML)检测算法复杂度极高的缺点,提出了一种低复杂度检测算法。首先,该算法基于压缩感知(CS)信号重构理论,对系统模型进行重构,使固定激活天线系统中的低复杂度算法可以在新的系统模型中使用;然后,借鉴正交匹配追踪(OMP)算法的思想,选出一个激活天线备选集;最后,通过 ML 算法搜索备选集,选出激活天线和调制符号。仿真结果显示,相比ML检测算法,所提算法在性能丢失较小的情况下,降低了约90%的复杂度。
To tackle the issues of the uncertainty number of the activated antennas and high computational complexity of maximum likelihood (ML) detection algorithm in quadrature spatial modulation (QSM)
a low-complexity detec-tion algorithm was proposed.Firstly
the system model was reconstructed into a new model suitable for low-complexity detection algorithms in fixed active antennas systems based on compressed sensing (CS) signal re-construction theory.Then
based on the idea of orthogonal matching pursuit (OMP) algorithm and reconstructed model
a candidate set of activated antennas was obtained.Lastly
using ML algorithm to search the candidate
the index of activated antennas and the modulation symbol were selected.Simulation results show that the proposed de-tector is capable of achieving about 90% reduction in complexity with low performance loss compared with ML al-gorithm.
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