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ICC
2007
IEEE
160views Communications» more  ICC 2007»
13 years 11 months ago
Robust Statistics Based Expectation-Maximization Algorithm for Channel Tracking in OFDM Systems
— Decision directed channel tracking (DDCT) at high fade rates in OFDM based systems is addressed in this paper. Existing DDCT algorithms like the expectation-maximization (EM) a...
Sheetal Kalyani, Krishnamurthy Giridhar
VTC
2010
IEEE
158views Communications» more  VTC 2010»
13 years 2 months ago
Joint Channel Impulse Response and Noise-Variance Estimation for OFDM/SDMA Systems Based on Expectation Maximization
Abstract—A joint channel impulse response (CIR) and noisevariance estimation scheme is proposed for multi-user MultipleInput-Multiple-Output (MIMO) Orthogonal Frequency-Division ...
Jiankang Zhang, Xiaomin Mu, Lajos Hanzo
VTC
2008
IEEE
150views Communications» more  VTC 2008»
13 years 11 months ago
Iterative Residual Frequency Offset Correction for OFDM Systems
The estimation and tracking of the fractional carrier frequency offset (CFO) is a crucial issue in the implementation of orthogonal frequency division multiplexing (OFDM) systems....
Mohamed Marey, Mamoun Guenach, Heidi Steendam
VTC
2006
IEEE
121views Communications» more  VTC 2006»
13 years 10 months ago
Estimation of the Channel-Impulse-Response Length for Adaptive OFDM Systems Based on Information Theoretic Criteria
Abstract—This paper proposes a new scheme based on information theoretical criteria to estimate the Channel-ImpulseResponse (CIR) length, whose accurate estimate represents one o...
Ali Aassie Ali, Van-Duc Nguyen, Kyandoghere Kyamak...
ICC
2007
IEEE
153views Communications» more  ICC 2007»
13 years 11 months ago
A Novel Blind Channel Estimation for CP-Based MIMO OFDM Systems
— In this paper, we consider the problem of blind channel estimation for multi-input, multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems via second ord...
Feifei Gao, Wenyuan Wu, Yonghong Zeng, Arumugam Na...