Fine Synchronization Method for OFDM Based on Channel Impulse Response

doi:10.3969/j.issn.1000-3428.2009.14.009

Computer Engineering ›› 2009, Vol. 35 ›› Issue (14): 25-27. doi: 10.3969/j.issn.1000-3428.2009.14.009

• Degree Paper • Previous Articles Next Articles

Fine Synchronization Method for OFDM Based on Channel Impulse Response

LIU Guang-yu1,2, LI Ming-qi1,2, LIN Hua-le3, YANG Zeng1,2, BU Zhi-yong1,2

(1. Shanghai Institute of Micro-system and Information Technology, Shanghai 200050; 2. Shanghai Jushri Technologies, Inc., Shanghai 201112; 3. National Key Lab of Mobile Communications, Southeast University, Nanjing 210096)

Received:1900-01-01 Revised:1900-01-01 Online:2009-07-20 Published:2009-07-20

基于信道冲击响应的OFDM精细同步方法

刘广宇1,2，李明齐1,2，林华乐3，杨曾1,2，卜智勇1,2

(1. 上海微系统与信息技术研究所，上海 200050；2. 上海瀚讯无线技术有限公司，上海 201112；3. 东南大学移动通信国家重点实验室，南京 210096)

Abstract

Abstract: A fine synchronization method for Orthogonal Frequency Division Multiplexing(OFDM) based on Channel Impulse Response (CIR) is proposed. CIR is estimated by Least Square(LS) channel with suppressing the effect of energy leakage under non-ideal synchronization, and the estimation result is timed. The window function based on CIR is also introduced. Simulation experimental results show this method can overcome the demerits of time lags for traditional relevant methods, and achieve higher estimation accuracy.

Key words: Orthogonal Frequency Division Multiplexing(OFDM), time synchronization, Channel Impulse Response(CIR)

摘要： 提出一种基于信道冲击响应的正交频分复用系统精细同步方法，在非理想同步情况下，利用可抑制能量泄漏的修正迭代最小二乘信道估计信道冲击响应，并对估计结果进行定时，同时介绍基于信道冲击响应的窗函数。仿真实验结果表明，该方法能够克服传统相关方法定时滞后的缺点，且获得较高的估计精度。

关键词: 正交频分复用, 定时同步, 信道冲击响应

CLC Number:

TN929.5

LIU Guang-yu; LI Ming-qi; LIN Hua-le; YANG Zeng; BU Zhi-yong;. Fine Synchronization Method for OFDM Based on Channel Impulse Response[J]. Computer Engineering, 2009, 35(14): 25-27.

刘广宇;李明齐;林华乐;杨曾;卜智勇;. 基于信道冲击响应的OFDM精细同步方法[J]. 计算机工程, 2009, 35(14): 25-27.

/ / Recommend / Download Citations

URL: http://www.ecice06.com/EN/10.3969/j.issn.1000-3428.2009.14.009

http://www.ecice06.com/EN/Y2009/V35/I14/25

[1]	YAO Yujie, LIU Guangzhong, KONG Weiquan. Time Synchronization Algorithm of Underwater Sensor Based on Doppler Velocity Measurement [J]. Computer Engineering, 2021, 47(4): 147-152.
[2]	HE Xiangdong, SUN Jingguo, CHEN Changsheng, WANG Jianyu, JIA Shiwei. SAE AS6802 Protocol Research and Modular Simulation Platform Design [J]. Computer Engineering, 2021, 47(1): 203-209.
[3]	YANG Fengfan, CHANG Jinfan, WANG Zheng. A Data Transmission Method for High Precision of Time Synchronization [J]. Computer Engineering, 2020, 46(2): 118-125,133.
[4]	KONG Weiquan, LIU Guangzhong. Cluster-based Time Synchronization Algorithm Using Dual Cluster Headsfor Underwater Sensor Network [J]. Computer Engineering, 2020, 46(2): 214-220,229.
[5]	ZHAO Qi,ZHAO Huailin,ZHU Bo. Time-triggered Ethernet Synchronization Algorithm Based on IEEE 1588 Protocol [J]. Computer Engineering, 2019, 45(3): 138-141,147.
[6]	GAO Baojian,HU Yun,HU Li’na. Spectrum Analysis Attack Method of Physical Layer Encryption Algorithm [J]. Computer Engineering, 2018, 44(12): 168-172.
[7]	LING Qiqi,LUO Zhinian. Joint Estimation of Carrier Frequency Offset and Channel Based on Data Dependent Superimposed Training Sequence [J]. Computer Engineering, 2017, 43(9): 138-143.
[8]	LUO Ji. Power Allocation for Cognitive Collaborative Network Based on Adaptive Relay [J]. Computer Engineering, 2017, 43(7): 151-155.
[9]	ZHUANG Ling,MA Long. Resource Allocation Algorithm of Multicarrier Cognitive Radio Considering Spectrum Sensing Error [J]. Computer Engineering, 2017, 43(2): 171-175,182.
[10]	CHEN Xiaomin,SU Junxu,TAN Wei,ZHU Yimin,ZHU Qiuming. Power Allocation Algorithm for V-BLAST OFDM Systems with Channel Correlation [J]. Computer Engineering, 2016, 42(9): 33-37.
[11]	SHI Longzhao,GUO Jimin. Design of Low Power Consumption FFT/IFFT Processor in MIMO-OFDM System [J]. Computer Engineering, 2016, 42(7): 16-21.
[12]	CHEN Kangrun,LIU Yang,ZHANG Wei. Research on Low-complexity PAPR Reduction Algorithm in Radar-communication Integrated System [J]. Computer Engineering, 2016, 42(6): 86-90.
[13]	ZHANG Zhengqiu,WANG Honghai. Cognitive Subcarrier Resource Allocation Based on Artificial Physics Optimization [J]. Computer Engineering, 2016, 42(3): 204-207.
[14]	LIAN Yueyong,ZHANG Chao,LI Qiang. Application of Robust Estimation for Time Synchronization and Retaining in Local Area Network [J]. Computer Engineering, 2016, 42(2): 287-292.
[15]	WEI Juyi,ZHANG Jianjun,WEI Zhenchun. An Energy-balanced and Low-overhead WSN Time Synchronization Algorithm [J]. Computer Engineering, 2016, 42(12): 5-10,15.

Please choose a citation manager

Content to export

Fine Synchronization Method for OFDM Based on Channel Impulse Response

基于信道冲击响应的OFDM精细同步方法

PDF

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

模态框（Modal）标题

Please choose a citation manager

Content to export

Fine Synchronization Method for OFDM Based on Channel Impulse Response

基于信道冲击响应的OFDM精细同步方法

PDF

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments