DocumentCode
684420
Title
An improved DFT-based channel estimation method for OFDM system
Author
Xingxing Li ; Xiaojun Jing ; Songlin Sun ; Hai Huang ; Yueming Lu
Author_Institution
Key Laboratory of Trustworthy Distributed Computing and Service (BUPT), Ministry of Education, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, 100876, China
fYear
2013
fDate
23-23 Nov. 2013
Firstpage
550
Lastpage
554
Abstract
In the OFDM system, channel estimation is significant in that it affects the reliability of coherent detection at the receiver side. DFT-based channel estimation method is suitable for sparse channel estimation due to sparsity means low computational complexity. Combined with exponential smoothing, an improved DFT-Based channel estimation method is proposed in order to suppress noise. The noise suppression capacity of exponential smoothing is analyzed in theory. Simulation results indicate that the improved method is superior to DFT-based method at a cost of low additional computational complexity.
Keywords
Channel Estimation; DFT-Based Method; Exponential Smoothing; OFDM;
fLanguage
English
Publisher
iet
Conference_Titel
Cyberspace Technology (CCT 2013), International Conference on
Conference_Location
Beijing, China
Electronic_ISBN
978-1-84919-801-1
Type
conf
DOI
10.1049/cp.2013.2101
Filename
6748646
Link To Document