Analysis of pilot-aided channel estimation with optimal leakage suppression for OFDM systems

J Seo, S Jang, J Yang, W Jeon… - IEEE communications …, 2010 - ieeexplore.ieee.org
This letter analyzes the effect of the leakage on the mean square error (MSE) performance of
the pilot-aided channel estimator using discrete Fourier transform (DFT)-based interpolation …

Analysis of DFT-based channel estimation for uplink massive MIMO systems

H Wu, Y Liu, K Wang - IEEE Communications Letters, 2017 - ieeexplore.ieee.org
To reduce the edge effect in discrete Fourier transform-based channel estimation, various
schemes have been proposed to estimate the channel response at the non-allocated …

Low-complexity enhanced DFT-based channel estimation for OFDM systems with virtual subcarriers

X Hou, Z Zhang, H Kayama - 2007 IEEE 18th International …, 2007 - ieeexplore.ieee.org
Traditional discrete Fourier transform (DFT) based channel estimation will suffer from
significant performance degradation due to the edge effect in practical orthogonal frequency …

Improved DFT-based channel estimation for OFDM systems with null subcarriers

L Zhang, Z Hong, L Thibault - 2009 IEEE 70th Vehicular …, 2009 - ieeexplore.ieee.org
We propose two new techniques to mitigate the" edge effect" of the traditional Discrete
Fourier Transform (DFT) based channel estimator for OFDM systems with Null subcarriers …

An enhanced DFT-based channel estimation using virtual interpolation with guard bands prediction for OFDM

JW Seo, JW Wee, WG Jeon, JH Paik… - 2006 IEEE 17th …, 2006 - ieeexplore.ieee.org
In this paper, we investigate the conventional windowed DFT-based channel estimation for
OFDM systems with guard bands. The conventional method suffers from the edge effect and …

Channel estimation method of an orthogonal frequency division multiplexing system and receiving apparatus

HUA Meng, G Wu, B Tang, S Jiao - US Patent 8,335,270, 2012 - Google Patents
BACKGROUND An OFDM technology is a high-speed multi-carrier trans mission technology
capable of effectively resisting Inter Symbol Interference (ISI). Being different from a conven …

Smooth edge distortion in broadband channel interpolation via virtual pilot extrapolation

ML McCloud, BC Banister - US Patent 8,611,340, 2013 - Google Patents
In the basic transform domain (linear filtering interpolation) technique for channel estimation
at the receiver in a wireless communication system, the improvement of providing chan nel …

An ISFA-combined pilot-aided channel estimation scheme in multiband orthogonal frequency division multiplexing ultra-wideband over fiber system

J He, T Li, X Wen, M Chen… - 2015 IEEE Symposium on …, 2015 - ieeexplore.ieee.org
In this paper, an intra-symbol frequency-domain averaging (ISFA)-combined pilot-aided
channel estimation scheme is proposed and investigated in investigated in intensity …

[PDF][PDF] 空载波对STBC-OFDM 系统信道估计性能的影响分析与改进

王轶, 陶小峰, 张平 - 电子与信息学报, 2009 - edit.jeit.ac.cn
该文分析了空时分组码-正交频分复用(STBC-OFDM) 系统中, 空载波对基于离散傅里叶变换(
DFT) 信道估计的性能影响, 推导得出空载波影响下信道估计均方误差及误码率的解析式 …

Doubly-selective channel estimation for packet OFDM systems with virtual subcarriers

X Hou, Z Zhang, H Kayama - 2008 IEEE 68th Vehicular …, 2008 - ieeexplore.ieee.org
Channel estimation based on two-dimensional discrete-time Fourier transform interpolation
(2D-DFTI) is suitable for orthogonal frequency division multiplexing (OFDM) systems …