Eigenvalue-based spectrum sensing algorithms for cognitive radio

Y Zeng, YC Liang - IEEE transactions on communications, 2009 - ieeexplore.ieee.org
Spectrum sensing is a fundamental component in a cognitive radio. In this paper, we
propose new sensing methods based on the eigenvalues of the covariance matrix of signals …

Subspace-based blind channel estimation for MIMO-OFDM systems with reduced time averaging

CC Tu, B Champagne - IEEE Transactions on Vehicular …, 2009 - ieeexplore.ieee.org
Among the various approaches recently proposed for blind estimation of wideband multiple-
input-multiple-output (MIMO) wireless channels, subspace-based algorithms are particularly …

Performance analysis of the signal-to-noise ratio assisted crosstalk channel estimation for DSL systems

M Guenach, J Louveaux… - 2009 IEEE …, 2009 - ieeexplore.ieee.org
In this paper we investigate the tracking performance of the downstream (DS) crosstalk (XT)
channel estimation based on the reported signal to noise ratio (SNR), in particular for digital …

Semiblind channel estimation for MIMO single carrier with frequency-domain equalization systems

YS Chen - IEEE transactions on vehicular technology, 2009 - ieeexplore.ieee.org
We propose a semiblind channel-estimation method for multiple-input multiple-output
(MIMO) single carrier with frequency-domain equalization systems. By taking advantage of …

[PDF][PDF] 基于正交空时编码的盲信道估计

曹雪虹, 姚维坚 - 电子学报, 2009 - ejournal.org.cn
本文从MIMO OSTBC-OFDM 系统的频域出发, 利用编码的正交特性建立数学模型,
采用归一化问题的最小值求解思想, 提出了一种基于二阶统计特性的子空间信道盲估计算法 …

A signal perturbation free whitening-rotation-based semiblind approach for MIMO channel estimation

F Wan, WP Zhu, MNS Swamy - IEEE Transactions on Signal …, 2009 - ieeexplore.ieee.org
It was shown in our previous work that, in the noise-free case, the whitening-rotation (WR)-
based MIMO channel estimation algorithm is subject to a signal perturbation error, justifying …

Linear prediction based semiblind channel estimation for multiuser OFDM with insufficient guard interval

P De, TH Chang, CY Chi - IEEE transactions on wireless …, 2009 - ieeexplore.ieee.org
To meet the demand of high data rate transmissions for multimedia wireless
communications, orthogonal frequency division multiplexing (OFDM) systems in conjunction …

EM-based channel estimation for MIMO OFDM system

G Hu, D Li - 2009 International Conference on Networks …, 2009 - ieeexplore.ieee.org
In this paper, a low complexity adaptive EM-based channel estimation algorithm is proposed
for Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing …

Subspace-based iterative semiblind channel estimation for MIMO-OFDM considering residual error

JG Kim, JT Lim - IEEE transactions on vehicular technology, 2009 - ieeexplore.ieee.org
A new approach to subspace-based channel estimation for multiple-input-multiple-output
orthogonal frequency-division multiplexing (MIMO-OFDM) systems is proposed. The …

[PDF][PDF] Blind Channel Identification and Equalisation in OFDM using Subspace-Based Methods.

FO Alayyan, RM Shubair, AM Zoubir, YH Leung - J. Commun., 2009 - jocm.us
A subspace-based method is proposed for estimating the channel responses of single-input-
multiple-output (SIMO) Orthogonal Frequency Division Multiplexing (OFDM) system. Our …