[1]张欣 彭端 张子杰 刘高星.基于LTE上行的改进LMMSE信道估计算法[J].计算机技术与发展,2012,(06):97-99.
 ZHANG Xin,PENG Duan,ZHANG Zi-jie,et al.An Improved LMMSE Channel Estimation Algorithm for LTE Uplink[J].,2012,(06):97-99.
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基于LTE上行的改进LMMSE信道估计算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2012年06期
页码:
97-99
栏目:
智能、算法、系统工程
出版日期:
1900-01-01

文章信息/Info

Title:
An Improved LMMSE Channel Estimation Algorithm for LTE Uplink
文章编号:
1673-629X(2012)06-0097-03
作者:
张欣1 彭端2 张子杰1 刘高星1
[1]广东工业大学信息工程学院[2]广东工业大学实验教学部
Author(s):
ZHANG Xin PENG Duan ZHANG Zi-jie LIU Gao-xing
[1]Information Engineering College, Guangdong University of Technology[2]Experimental Center, Guangdong University of Technology
关键词:
SC-FDMA信道估计LMMSE算法
Keywords:
SC-FDMA channel estimation LMMSE algorithm
分类号:
TP301.6
文献标志码:
A
摘要:
对于无线通信系统来说,无线信道直接影响着其性能的好坏。然而无线信道具有随机性,为了在接收端准确恢复发射端的发送信号,这就需要对信道进行估计。LTE采用SC-FDMA作为上行多址方式,与OFDM相比,SC-FDMA一个突出的优势就是具有较低的峰均比(PAPR,Peak-to-Average Power Ratio)。文中介绍了SC-FDMA系统中基于导频的信道估计LS算法和LMMSE算法,通过提出一个优化的导频结构以及运用傅里叶变换,得到一种改进的LMMSE算法。仿真结果表明,这种改进的LMMSE算法具有较低的计算复杂度和良好的性能
Abstract:
The performance of wireless communication systems is affected by the wireless channel, while the wireless channel has randomness, in order to accurately recover the transmitter signal, which requires to estimate the channel. SC-FDMA system is adopted as LTE uplink multiple access scheme. Compared with OFDM,SC-FDMA has lower Peak-to-Average Power Ratio( PAPR). In this paper,An improved LMMSE channel estimation algorithm is proposed based on the Least-Squares (LS) and Linear Minimum Mean-Square Error ( LMMSE ) channel estimation algorithm using pilot for SC-FDMA system. Simulation results show that the improved LMMSE algorithm has good performance and low computational complexity

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备注/Memo

备注/Memo:
广州市应用基础研究项目(2006J1-C0331); 广东工业大学博士基金项目(073016)张欣(1985-),男,硕士研究生,主要研究方向为宽带移动通信系统彭端,教授,主要研究方向为宽带移动通信系统
更新日期/Last Update: 1900-01-01