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| 基于卷积码的DFT-S-GMC系统迭代检测算法 | |
| 引用本文： | 芮 赟,李明齐,罗银辉. 基于卷积码的DFT-S-GMC系统迭代检测算法[J]. 通信学报, 2011, 32(3): 33-39 |
| 作者姓名： | 芮 赟 李明齐 罗银辉 |
| 作者单位： | 1. 中国科学院,上海微系统与信息技术研究所,上海,200050;西安电子科技大学,综合业务网理论及关键技术国家重点实验室,陕西,西安,710071 2. 总参通信部驻上海地区军事代表室,上海,200082 3. 中国科学院,上海微系统与信息技术研究所,上海,200050;西南交通大学信息编码与传输四川省重点实验室,四川,成都,610000 4. 上海交通大学,电子信息与工程学院,上海,200240 |
| 基金项目： | 国家科技重大专项基金资助项目，西南交通大学信息编码与传输重点实验室开放课题基金资助项目，综合业务网理论及关键技术国家重点实验室开放课题基金资助项目，上海市自然幕金资助项目 |
| 摘 要： | 针对基于离散傅立叶变换扩频的广义多载波系统(DFT-S-GMC),提出一种新的迭代检测方法.该方法基于DFF-S-GMC系统的频域收发结构,并根据线性最小均方误差(LMMSE)检测所得发送符号的后验均值和方差来表征其统计概率分布,从而完成检测器和译码器的信息传递.仿真结果表明,所提出迭代检测接收算法的性能明显优于传统的非迭代检测接收算法,并且在卷积码下的迭代检测性能超过了Turbo码下的非迭代检测性能,而其实现复杂度则有较大降低. |
| 关 键 词： | 迭代检测 高斯分布 |
Convolutional coding based iterative detection algorithm for DFT-S-GMC systems |
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| RUI Yun,TANG Si-liang,LI Ming-qi,LUO Yin-hui. Convolutional coding based iterative detection algorithm for DFT-S-GMC systems[J]. Journal on Communications, 2011, 32(3): 33-39 | |
| Authors: | RUI Yun TANG Si-liang LI Ming-qi LUO Yin-hui |
| Affiliation: | RUI Yun1,3,TANG Si-liang4,LI Ming-qi1,2,LUO Yin-hui5(1.Shanghai Institute of Microsystem , Information Technology,Chinese Academy of Sciences,Shanghai 200050,China,2.Key Laboratory of Information Coding , Transmission,Southwest Jiaotong University,Chengdu 610000,3.The State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an 710071,4.Shanghai Military Deputy Office Communication Department General Staff,Shanghai 200082,5.School of Electronic,Information , Electrica... |
| Abstract: | A new iterative detection method for discrete Fourier transform spread generalized multi-carrier(DFT-S-GMC) system was proposed.Based on the frequency-domain transceiver structure of DFT-S-GMC system,the linear minimum mean-square error(LMMSE) estimation was performed,which was characterized by the posterior mean and variance.Then,the log likelihood ratio(LLR) information is transferred between detector and decoder according to the probability density function(PDF) of the transmitted symbols.Simulation resu... |
| Keywords: | DFT-S-GMC MMSE |
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