| 一种新频域扩频多用户检测器与MC-CDMA的比较 |
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| 引用本文： | 金萍,任前义,刘会杰,梁旭文.一种新频域扩频多用户检测器与MC-CDMA的比较[J].上海航天,2008,25(6). |
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| 作者姓名： | 金萍 任前义 刘会杰 梁旭文 |
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| 作者单位： | 中科院微小卫星联合重点实验室,上海,200050 |
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| 摘 要： | 介绍了一种频域扩频通信体制与多载波码分多址(MC-CDMA)多用户检测器的原理,比较了两者的多用户检测方法和抗窄带干扰能力.结果表明:该频域扩频多用户检测器具更优的抗多址干扰、远近效应和窄带干扰,且算法简洁.利于在低轨卫星通信系统中应用.
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| 关 键 词： | 频域扩频 多载波码分多址 正交频分复用 多用户检测 |
Comparison of Multiuser Detection Performance between a New Frequency-Domain Spreading Approach and MC-CDMA |
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| JIN Ping,REN Qian-yi,LIU Hui-jie,LIANG Xu-wen.Comparison of Multiuser Detection Performance between a New Frequency-Domain Spreading Approach and MC-CDMA[J].Aerospace Shanghai,2008,25(6). |
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| Authors: | JIN Ping REN Qian-yi LIU Hui-jie LIANG Xu-wen |
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| Institution: | JIN Ping,REN Qian-yi,LIU Hui-jie,LIANG Xu-wen(The Micro-Satellite State Key Joint Laboratory,CAS,Shanghai 200050,China) |
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| Abstract: | The multiuser detections of a new frequency-domain spreading approach and multi-carrier code division multiple access(MC-CDMA) were introduced in this paper.The multiuser detections and anti narrow band interference suppression of both schemes were compared.The results showed that the former had better anti multiple access interference suppression,far and near effect and narrow bnd interference,which was simple and applied in LEO communication system. |
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| Keywords: | Frequency-domain spreading approach Multi-carrier code division multiple access Orthogonal frequency dividon multiplexing Multiuser detection |
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