| 基于SP-LCCMA的STBC MC-CDMA系统盲信道估计 |
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| 引用本文： | 赵发勇,酆广增.基于SP-LCCMA的STBC MC-CDMA系统盲信道估计[J].南京邮电大学学报(自然科学版),2008,28(4). |
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| 作者姓名： | 赵发勇 酆广增 |
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| 作者单位： | 1. 南京邮电大学,通信与信息工程学院,江苏,南京,210003;阜阳师范学院,物理与电子学院,安徽,阜阳,236032
2. 南京邮电大学,通信与信息工程学院,江苏,南京,210003 |
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| 摘 要： | 研究了空时编码多栽波码分多址系统(STBC MC-CDMA)盲信道估计技术.根据信道位于信号子空间的特点,提出基于信号子空间投影线性约束恒模算法(SP-LCCMA)的盲信道估计,避免了噪声子空间信道估计的缺点,将估计信道应用于STBC MC-CDMA系统多用户检测.仿真结果表明,提出算法的收敛速度和信干噪比(SINR)性能优于一般恒模算法.
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| 关 键 词： | 多用户检测 盲信道估计 子空间投影线性约束恒模算法 |
Blind Cannel Estimation for STBC MC-CDMA Systems Based on SP-LCCMA |
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| ZHAO Fa-yong,FENG Guang-zeng.Blind Cannel Estimation for STBC MC-CDMA Systems Based on SP-LCCMA[J].Journal of Nanjing University of Posts and Telecommunications,2008,28(4). |
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| Authors: | ZHAO Fa-yong FENG Guang-zeng |
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| Institution: | ZHAO Fa-yong1,2,FENG Guang-zeng11.College of Communication , Information Engineering,Nanjing University of Posts , Telecommunications,Nanjing 210003,China2.Department of Physic , Electronic,Fuyang Normal College,Fuyang 236032,China |
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| Abstract: | The paper studies blind channel estimation technique for space-time block codes multi-carrier code division multiple access(STBC MC-CDMA).We present a blind channel estimation algorithm based on subspace projected linear constraint constant modulus algorithm(SP-LCCMA) for the reason that the channel must belong to signal subspace,which can avoid the shortcoming of subspace based channel estimation.We apply the algorithm to STBC MC-CDMA multi-user detection.Simulation indicates that the proposed algorithm ha... |
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| Keywords: | STBC=MC-CDMA |
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