Paper Info
Title
Low-Complexity Enhanced DFT-based Channel Estimation for OFDM Systems with virtual Subcarriers.
Abstract
Traditional discrete Fourier transform (DFT) based channel estimation will suffer from significant performance degradation due to the edge effect in practical orthogonal frequency division multiplexing (OFDM) systems with virtual subcarriers. In this paper, a novel enhanced DFT-based channel estimation method is proposed, which can effectively mitigate the edge effect caused by virtual subcarriers via edge value repetition in the frequency domain and zero insertion in the time domain, thus to improve the overall channel estimation performance for the usable subcarriers. Moreover, it does not need a priori statistical characteristics of the wireless channel and the complexity of channel estimation is not increased. Therefore, it is especially suitable for hardware implementation. © 2007 IEEE.
Year
DOI
Venue
2007
10.1109/PIMRC.2007.4394354
PIMRC
Keywords
Field
DocType
edge effect,ofdm modulation,time domain,discrete fourier transform,computational complexity,frequency domain
Frequency domain,Time domain,Wireless,Computer science,A priori and a posteriori,Communication channel,Real-time computing,Discrete Fourier transform,Orthogonal frequency-division multiplexing,Computational complexity theory
Conference
Volume
Issue
ISSN
null
null
null
ISBN
Citations 
PageRank 
978-1-4244-1144-3
3
0.54
References 
Authors
8
3
Name
Order
Citations
PageRank
Xiaolin Hou17615.75
Zhan Zhang2153.03
Hidetoshi Kayama312824.09