| 空间调制系统低复杂度的天线选择算法 |
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| 引用本文： | 门宏志,刘文龙,王楠,金明录.空间调制系统低复杂度的天线选择算法[J].电子学报,2016,44(6):1322-1327. |
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| 作者姓名： | 门宏志 刘文龙 王楠 金明录 |
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| 作者单位： | 大连理工大学信息与通信工程学院, 辽宁大连 116023 |
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| 基金项目： | 国家自然科学基金(No．11372069)；辽宁省自然科学基金(2013020033) |
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| 摘 要： | 空间调制(Spatial Modulation,SM)是一种特殊的多天线传输技术,利用发送天线索引和发送的符号共同传递信息.为了获得发送分集增益,人们将天线选择技术应用到SM系统中,提高SM系统解调性能.在天线选择技术中,最大-最小欧式距离(Euclidean Distance Antenna Selection,EDAS)准则应用较为广泛,但是它的全搜索求解方法复杂度高,限制了其应用.为此,本文利用空间调制系统和调制符号本身的特性,从2维量化解调的视角出发,给出了两种低复杂度的最优天线选择算法,并通过计算机仿真和复杂度分析,表明了该算法的有效性和最优性.
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| 关 键 词： | 空间调制 天线选择 低复杂度 |
| 收稿时间： | 2014-09-01 |
Low-Co mpIexity Antenna SeIection AIgorith ms for SpatiaI Modu Iation Syste ms |
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| MEN Hong-zhi,LIU Wen-long,WANG Nan,JIN Ming-lu.Low-Co mpIexity Antenna SeIection AIgorith ms for SpatiaI Modu Iation Syste ms[J].Acta Electronica Sinica,2016,44(6):1322-1327. |
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| Authors: | MEN Hong-zhi LIU Wen-long WANG Nan JIN Ming-lu |
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| Affiliation: | The School of Information and Communications, Dalian University of Technology, Dalian, Liaoning 116023, China |
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| Abstract: | Spatial modulation (SM)is a special multi-antenna transmission technology,where the transmit antenna index is exploited to convey information except for modulation signals.In order to obtain transmit-diversity gains,antenna selection technology is introduced in SM systems to increase its demodulation performance.In antenna selection technology, Euclidean distance antenna selection (EDAS )is widely applied.However,its exhaust-search detection has extremely high complexity,which limits its application.Thus,exploiting the characteristics of modulation symbols and 2-D quantization,two low-complexity and optimal antenna selection algorithms are proposed.The simulation results show that the proposed algo-rithms reduce the computational complexity meanwhile achieving optimal performance. |
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| Keywords: | spatial modulation (SM) antenna selection low complexity |
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